Frequently Asked Questions
Ordering & Payment
Due to an automatic ordering system, order modifications are no longer possible once your order has been placed online.
Manduka.com uses Secure Socket Layer (SSL) encryption to scramble credit card information so that customer transactions are safe and secure.
Manduka.com (US) accepts the following forms of payment for purchases:
• American Express
Please note - we are unable to accept pre-paid gift cards.
For detailed shipping options and availability please visit our shipping page.
If you created an account, you can use the directions below to view your order information:
1. Log into your account here.
2. Your Account Dashboard will show recent orders upon log-in. For older orders, click My Orders in the navigation on the left hand side of the page.
4. Click View Order on the specific order you're inquiring about.
If your order is not visible in your account, or you made an order as a Guest, please contact us.
To redeem a coupon code:
1. When you are ready to check out, click the shopping bag at the top right of your screen and then View Cart.
2. Below your cart on the left-hand side, there is a Discount Code box. Be sure to avoid including a space before the promotion code, which sometimes happens if you cut and paste from an email or other electronic communication.
3. Hit Apply Coupon and look for the discount to apply in your total on the right-hand side of the screen, before continuing.
NOTE: The majority of our promotions cannot be combined with other offers or discounts. It is always great to check the terms and conditions for specific rules and order eligibility.
We are unable to apply promotional codes and discounts to past purchases.
If you receive a message saying that your coupon code is invalid, it could be due to any of the following reasons:
• The promotion has expired.
• The promotion cannot be used with the items you want to purchase.
• Promotional items may be missing from your cart.
• The promotion cannot be combined with any other offer.
The majority of our promotions cannot be combined with other offers or discounts. It is always great to check the terms and conditions for specific rules and order eligibility.
YES - so long as the order subtotal is over the minimum amount required to take advantage of the free shipping promotion. Some discounts are applied before the order subtotal is calculated, in which case the free shipping offer would not apply.
The Free Shipping promotion for US does not require the use of a coupon code. Qualifying orders will be given a free shipping option (FedEx Home Delivery) after entering your shipping address in check-out. Certain orders are not eligible for free shipping.
• Alaska, Hawaii, and off shore U.S. territories, such as Puerto Rico and Guam
• APO/FPO and PO Box addresses
• International orders
• Wholesale orders
• Any order containing The PRO Squared
It is always great to check the terms and conditions for specific rules and order eligibility. Click here for Terms & Conditions for Free Shipping.
eGift Cards no longer work through our website. However, we are more than happy to place your order over the phone. Feel free to call 1-877-626-3852 and a Customer Care Representative will assist you. Manduka is open Monday through Friday, 9:00am – 5:00pm CET.
To determine which apparel sizes will suit you best, please visit our fit guide.
We choose fabrics that are kind on the earth, soft on the skin and designed specifically for yoga. For more information, please visit our fabric guide.
For women, we've developed countoured fits and flexible seams to move with you in your practice - distraction free. Longer silhouettes and high waistbands keep you covered, while natural materials allow your body to breathe.
For men, subtley tapered waists and bottoms keep your shirt and shorts from rising up during downward dogs and inversions. Our performance fabrics conceal sweat and allow you to transition easily from the mat to the rest of your day.
Please see our fit guide to learn more.
We recommend caring for your garments by washing and drying in low temperatures as much as possible in order to prolong their useful life and also conserve the earth’s energy. Always avoid using fabric softeners – they can inhibit wicking and breathability in performance fabrics. We never recommend dry cleaning.
PRO® Series Lifetime Guarantee
Manduka guarantees the Black Mat PRO®, Manduka PRO® and PROlite® yoga mats to be free of manufacturer defects and to last a lifetime, if used and cared for properly. Since the The PRO Squared is a multi-purpose mat, it is not included under the Lifetime Guarantee. Should a PRO mat not meet Manduka's standard of quality at the time it is received, we will replace the product, regardless of where it was purchased. If the product wears out from regular use, under normal conditions, we will replace the product, regardless of where it was purchased. Damage resulting from improper handling or care, post-purchase modifications, alterations, negligence, and use for a purpose other than for which it was designed, are not covered by the Manduka Guarantee.
If you would like to request a replacement mat, please fill out a contact form. Manduka will review the submission, determine if the PRO Series mat falls under our Lifetime Guarantee program criteria, and provide further instruction. You will receive a response to your inquiry within two business days.
The following conditions are covered under our Lifetime Guarantee for Manduka PRO and PROlite mats:
• Surface imperfections, such as gouges, slices and divots found at the time of purchase before use.
• Worn or peeling top or bottom surface from regular use.
• Undefined surface pattern.
• PRO mats purchased after September 1st, 2008
Examples of criteria not covered under our lifetime gurantee for Manduka PRO and PROlite mats include:
- The PRO Squared, as it is a multi-purpose mat.
- Creases/Folds/Discoloration from improper handling and/or storing. (It is best to lay the mat flat or keep it rolled up.)
- Uneven color patterns or discoloration at the time of purchase, or due to use.
- Damage from excessive amounts of water or other liquids (i.e. submerging the mat under water).
- Improper cleaning (i.e. harsh chemicals, damage from a washing machine,
vacuum cleaner, etc.)
- Damage from use other than yoga or similar fitness activities.
- Damage from outside elements/factors that puncture the mat.
- Mats purchased before September 1st, 2008.
- Mats marked as "Irregular" at time of purchase
PRO® Yoga Mats
Yes, Manduka is proud to currently offer the PRO® mat in distinct sizes:
These mats are actually more similar than they are different! Both the Manduka PRO® and PROlite® feature the same performance surface, dense support, and a lifetime guarantee. They have been Manduka’s top-selling mats for 10+ years! So what sets them apart? The differences are found in their weight, thickness and color. The PROlite was designed for yogis who want the look and feel of the Manduka PRO, but prefer a lighter version. Available in several passion-inspiring colors, the PROlite offers superior quality and comfort, just like big brother Manduka PRO, but weighs in at just 4 lbs.
We consider a PRO® purchase an environmentally conscious choice. In general, PVC is not environmentally friendly, as it seeps toxins into landfills and toxins are often released during the manufacturing process. However, we are happy to report that that our PRO mats are free of toxins (specifically phthalate free) and that the PRO manufacturing process is certified emissions free. Additionally, OEKO-TEX, a European association for textile industries, certifies the Manduka PRO Series mats are safe and free of harmful substances.
Eco-responsibility starts by reducing consumption. The product’s durability will drastically reduce the amount of yoga mats bought and thrown out into landfills. It also allows people to donate the mats when they are ready for something new to people who may not be able to afford a new yoga mat.
All of our mats have been designed by yoga teachers for function, comfort and longevity. The PRO® line is made from eco-certified safe PVC.
No. Manduka PRO® Series mats are 100% latex-free!
Lightly scrub the mat with a soft brush, cloth or sponge using Manduka’s All Purpose Mat Wash. Please avoid using vinegar based cleaning solutions as they will dull any metallic and opalescent properties. Wipe clean with water and air dry in the sunshine.
We do not recommend cleaning your mat with a garden hose, putting it in the bathtub, shower, washing machine, or using a vacuum cleaner – any of the following will likely damage the mat and void the Lifetime Guarantee.
Much like a baseball glove, there is a break-in period for all PRO® Series mats. The more the mat is used, the softer and grippier the material becomes!
The break-in period varies from mat to mat since it is a textile and also because each yogi’s practice varies quite a bit. Typically, it takes about three months of daily practice and a bit of slipping during that time so that the friction of feet and hands break-in the mat.
(To speed up the process see our answer to "How do I break in my new PRO Series mat?")
If you're concerned about slippage, we recommend pairing your PRO mat with a performance yoga towel. Whether your mat is brand new or decades old, a towel adds an absorbant and hygienic layer to a sweaty practice.
Just like your favorite pair of jeans or a well-worn baseball glove, the PRO® requires a break-in process, or PROcess as we like to call it, which is really more like a ritual. As you practice, the top surface will naturally wear in, transforming it into one that’s uniquely yours. The more you stretch, twist, sweat and breathe together, the better it gets—just like your practice.
Designed to last a lifetime (with a guarantee to back it up), you’ll never wear your PRO mat out, you’ll just wear it in. In fact, some of our very first (and now legendary) Black Mat PROs are still being used today—that’s nearly 20 years of practice and still flowing strong. Regardless of which break-in method you use, it’s really all about making the mat yours.
The best way to break in your mat is practice, practice, practice, but if you want to speed things up a little, try the salt method below or view our break-in video:
The top of the mat has a frog logo in the top right-hand corner. The bottom has a dot pattern texture, which prevents the mat from sliding on the floor.
If you store your mat rolled up, try rolling it so the top surface is facing outwards. This keeps the corners of the mat flat when practicing.
Manduka X Mat
The Manduka X Mat is great for athletes and people with active lifestyles who are looking for a yoga mat to complement their workout routine.
The Manduka X Mat is currently available in one size – 71” x 24” x 5mm, and it weighs 3.7 lbs.
The Manduka X Mat is made of Thermoplastic Elastomer (TPE) and is 6P free.
As the Lifetime Guarantee only covers PRO Series mats, the Manduka X Mat is not covered under the Lifetime Guarantee.
No. Manduka X Mats are 100% latex-free!
The Manduka X Mat is made of the same durable material on the top and bottom, so you are welcome to use either side!
eKO® Yoga Mats
Our PRO® Series has been known as the Taj Mahal of yoga mats for 10+ years. Backed by a Lifetime Guarantee, the closed-cell construction provides dense support while the performance surface allows optimal movement between poses. Designed to last a lifetime (or two), Manduka PRO series yoga mats curb the amount of PVC that enter landfills each year and reduces overall mat consumption.
The eKO® Series, made of all natural non-Amazon harvested tree rubber, is the next generation of eco-friendly yoga mats. Developed over four years of research, the sealed-cell surface provides a stable practice with wet-grip. We are proud to say that Manduka’s eKO mat is manufactured without any toxic glues or foaming agents and is more durable than other natural rubber mats found in the marketplace.
Wondering why we keep mentioning cells? A closed-cell or sealed-cell surface means your mat will not absorb sweat and moisture, where other mats might. If you sweat regularly in your practice, consider pairing any of our mats with a yoga towel to keep your mat dry, and your practice in place.
Both the eKO® Series and the PRO® Series have been designed and engineered by yoga teachers to provide the ultimate surface to practice yoga. However, due to the different properties of the materials, they offer a different experience when practicing!
The PRO Series offers the ultimate durability, comfort and performance. In terms of thickness, the PRO mat (6mm) is a bit thicker than the eKO mat (5mm). All PRO Series mats offer strong and dense support, ideal for sensitive knees and joints.
The eKO mat has two layers of different densities to simultaneously provide comfort and durability. The eKO Series offers a soft, spongy support, ideal for yogis who like a grounding experience.
Durability and Performance:
Typical rubber eco-friendly yoga mats can be spongy and have an open-cell surface, due to the process that natural tree rubber goes through. Because they are open-cell, the durability of the mat is compromised and most rubber eco-friendly yoga mats break down fairly quickly, especially when exposed to humidity and/or sunlight.
In order to solve these problems, Manduka created the eKO® mat with dual layers, each having unique material properties to provide superior durability and the ultimate combination of cushion and grip. The top layer is sealed-cell and imprinted with a slip resistant pattern, making it more durable than typical rubber mats and also grippy. The bottom layer is thick and spongy to provide comfort and cushion on any surface.
The eKO mat is made from natural, non-Amazon forested tree rubber. Unlike typical rubber eco-friendly mats available today, no toxic chemicals have gone into the manufacturing process to make the rubber spongy. Therefore, when the eKO mat is disposed of and biodegrades, it will leave behind no toxic residue.
All natural rubber yoga mats have a scent that can be especially strong when the mat is new. The smell is not a result of off-gassing chemicals, as no toxic chemicals have gone into the manufacturing process. Your eKO® mat's natural rubber smell will fade, but not completely vanish due to it's eco-friendly composition.
To make the smell fade more quickly, leave your mat unrolled in an airy, shaded area and wipe the mat down with Manduka’s Natural Rubber Mat Wash, a vinegar-based cleaning solution with essential oils.
Yes, Manduka is proud to currently offer the eKO® mat in distinct sizes:
The thick support of the eKO® Mat 5mm makes it heavier than other mats on the market. However, those who use the 5mm size say it’s worth the weight for its superior cushion and longevity. For customers who want a lighter option, we offer the eKO® Lite mats!
Without soaking or submerging, use a generous amount of Manduka’s Natural Rubber Mat Wash to clean the mat. Allow the cleaner to sit for a few minutes and then gently wipe around with a damp cloth and let the mat dry in a shaded area.
We do not recommend cleaning your mat with a garden hose, putting it in the bathtub, shower, washing machine, or using a vacuum cleaner, as any of these will likely damage the mat beyond repair. Do not leave the mat exposed to excessive amounts of sunlight. Do not use any type of soap for cleaning, as it will compromise the performance and integrity of the mat.
The top of the mat has a slip-resistant rippled water texture and frog label in the top right-hand corner. The bottom is a sponge-like texture that provides a soft cushion and support.
Oxidation, or changes in color and texture, is a byproduct of all natural rubber products. Storing your eKO® mat in a dry environment out of sunlight, will prolong the life of the mat. For optimum care, wipe down your mat with water before each use and clean as needed with Manduka’s Natural Rubber Mat Wash.
Regularly cleaning the eKO® mat with our Natural Rubber Mat Wash will keep it in the cleanest and grippiest condition. Natural tree rubber often gets “thirsty” and a good cleaning can make a world of difference in appearance and grip.
If you sweat a lot, there still might be a slight amount of slip in some standing poses and poses like down dog, but if you keep your awareness and energy moving towards, instead of away, from your center of gravity, the "slippage" stops and one can stay firm in the pose. Actually, a little slippage comes in handy in some poses. For instance, during shoulder stand or plow pose, when it's nice to allow the head to slide and the neck to lengthen.
welcOMe Yoga Mats
We designed the welcOMe Mat for beginners. Features like the alignment stripe and soft cushioning are attractive to those who are newer to yoga. However, all are welcome to practice on it!
The welcOMe Mat is currently available in only one size – 68” x 24” x 5mm - and it weighs 2.3 lbs.
The welcOMe Mat is made of Thermoplastic Elastomer (TPE) and is 6P free. While other TPEs gets a bad rap, we only use the highest grade, which means it doesn’t contain any harmful solvents.
Although the Lifetime Guarantee covers PRO Series mats, the welcOMe Mat is not covered under the Lifetime Guarantee.
The welcOMe Mat is made free of solvents and toxic glues, and with energy efficient manufacturing.
No, the welcOMe Mat is 100% latex-free!
The alignment stripe helps yogis keep their poses correctly aligned by clearly outlining the center of the mat.
Although the welcOMe Mat is reversible, the “top” of the welcOMe Mat has a defined alignment stripe and imprinted logo.
LiveON Yoga Mats
Yes, Manduka is proud to currently offer the LiveON mat in distinct sizes:
The LiveON mat is made of PLUSfoam®, a 100% recyclable and reclaimable material that offers a true closed-loop production process. PLUSfoam® is an earth friendly alternative that uses minimal energy in a closed-loop production process and is made with zero waste manufacturing.
Today this may be your brand new yoga mat, but in the years to come it may become another great LiveON product. Learn more about the LiveON manufacturing process in this video.
To recycle your LiveON mat please visit www.PLUSfoam.com/reclaim and select the Manduka LiveON product you are ready to reincarnate.
All of our mats have been designed by yoga teachers for function, comfort and longevity. The LiveON mat is made of 100% sustainable PLUSfoam®, an earth friendly alternative to chemical laden foams.
No. Manduka LiveON Series mats are 100% latex-free!
LiveON mats should be stored in a cool, dry place. The PlusFoam material is sensitive to heat so direct sunlight may damage the mat.
To clean your LiveON mat, wipe it down with Manduka’s All-Purpose Mat Wash.
We do not recommend cleaning your mat with a garden hose, putting it in the bathtub, shower, washing machine, or using a vacuum cleaner, as any of these will likely damage the mat beyond repair.
The top of the mat has a frog label in the top right-hand corner. The bottom has a dot pattern and the PLUSfoam® logo.
If you store your mat rolled up, try rolling it so the top surface is facing outwards. This keeps the corners of the mat flat when practicing.
Manduka's All-Purpose Mat Wash works best on our PRO Series, LiveON Series and other brands of yoga mats.
Our Natural Rubber Mat Wash is specially developed for natural rubber yoga mats, which includes our eKO series. It is formulated from a vinegar base which helps restore the original state of the natural material.
Spray the Mat Wash on the mat to lightly cover the top surface. Wipe down mat with a cloth. Air dry before rolling and using.
Spray a generous amount of Mat Wash to fully cover the top surface and let sit for 3-5 minutes. Use a damp cloth to wipe the surface and remove dirt and stains. Wipe mat down with a clean cloth. Air dry before rolling and using.
All-Purpose Mat Wash Ingredients:
Water, certified organic essential oils, phosphate free chelating agent (aids in cleaning), and a vegetable oil-based surfactant that promotes better penetration by the mat wash solution to clean dirt.
Mat Wash Scents:
• Tranquil Lavendar - Light, fresh and claming
• Energizing Gingergrass - Radiant, warm and earthy.
• Soothing Citrus - Rejuvenating, vibrant and citrus.
Natural Rubber Mat Wash Ingredients:
Vinegar, certified organic essential oils, phosphate free chelating agent (aids in cleaning), and a vegetable oil-based surfactant that promotes better penetration by the mat wash solution to clean dirt.
Natural Rubber Mat Wash Scents:
• Uplifting Palmarosa - Soft, fresh and floral.
• Invigorating Lemongrass & Sage - Light, sweet and crisp.
Natural rubber yoga mats break down and oxidize over time and with use. This happens with any natural rubber yoga mat on the market. Vinegar restores the rubber and adds moisture and grip back to the mat, while prolonging its lifespan.
eQua Yoga Towels
When laid down over your yoga mat, a high performance yoga towel provides a barrier for sweat absorption and will add traction to sweaty palms and feet. The beauty of our eQua towels is that the fabric becomes slip-resistant when damp. In other words, the more drippy, the more grippy! Before beginning practice, lightly mist both sides of the towel to ensure superior grip from start to finish.
The eQua Towel also doubles as a germ-free gym towel to absorb perspiration, a meditation shawl to stay warm during cool sitting sessions, and a travel or hiking towel that takes up minimal packing space.
All eQua Towels are made of a luxuriously soft microfiber but they vary in thickness:
• The eQua Towel is designed for light to medium perspiration and can be used in any type of yoga.
• The eQua HOT Towel is designed for medium to heavy perspiration and is the most absorbent towel of its kind, holding twice the amount of moisture as the eQua Towel. It is especially great for heated practices!
The main difference is the feel of the towel, as both eQua and yogitoes towels will absorb sweat and offer excellent grip in even the sweatiest of situations. However, due to their design, they offer a different experience when practicing!
• The eQua towel is a smooth and soft experience and it features a moisture activated grip.
• The yogitoes towel is a textured and tactile experience because of the silicone nubs and is grippy in wet or dry conditions.
For the best of both worlds, we've created the eQua Hold towel which features the moisture activated microfibers and discreet grippy nubs beneath to hug your mat.
The eQua Towel is made of a proprietary microfiber material that is ultra-luxurious to the touch. The suede-like texture is on both sides and the microfiber fabric is comprised of 80% polyester and 20% nylon. The super absorbent, quick drying fabric is sheered and brushed for additional softness.
Our eQua Towels come in the following sizes:
We recommend washing with cold water and like colors, tumble dry low or hang dry and do not bleach. We do not recommend using dryer sheets, fabric softeners or detergents with fabric softener, as they will make the surface of your eQua Towel slick.
We use dyes that are heavy metal/azo/lead free and much better for the planet, so deeper colors may require multiple, separate washings to remove excess dye. Some dye loss may continue beyond the initial separate washings, so use caution when practicing on light colored mats or in light colored clothing. Be sure to avoid rolling up a damp eQua Towel with your mat.
As a note, it is possible for shrinking to occur if washed in warm water and/or dried in heat.
yogitoes Yoga Towels
The yogitoes towel does indeed have a designated top and bottom. The patented Skidless technology grips to your mat and prevents slipping no matter how much you move or sweat. The smooth side without the silicone nubs is meant to provide a luxurious feeling on your hands and feet.
The yogitoes Towel is made of a recycled and proprietary microfiber material. A woven texture on both sides, the microfiber fabric is comprised of 10% Nylon, 50% Recycled Polyester, 40% Virgin Polyester Microfiber and the skidless dots are 100% silicone.
Our yogitoes Towels come in the following sizes:
We recommend machine washing with cold water and like colors, tumble dry low or hang dry and do not bleach. We do not recommend using dryer sheets, fabric softeners or detergents with fabric softener, as they will make the surface of your yogitoes slick.
We use dyes that are heavy metal/azo/lead free and much better for the planet, so deeper colors may require multiple, separate washings to remove excess dye. Some dye loss may continue beyond the initial separate washings, so use caution when practicing on light colored mats or in light colored clothing. Be sure to avoid rolling up a damp yogitoes with your mat.
As a note, it is possible for shrinking to occur if washed in warm water and/or dried in heat.
Below is a chart of our recommended bags for each Manduka yoga mat:
Manduka’s LiveOn Onward Sandals are available in whole sizes for Women and Men. If you ordinarily select a half size, our best recommendation is to size down!
Please see the chart below for international size comparisons:
Manduka is unable to accept returns or exchanges on footwear that is out of its original packaging. If the sandals have been worn or show signs of wear, a refund cannot be issued. Click here to view the full return policy for apparel and footwear.
After a long life of practicing, you can return your LiveON product to our partners at PLUSfoam®. Your LiveON product will be reformed into a brand new LiveON product! To recycle, visit www.PLUSfoam.com/reclaim and select the Manduka LiveON product you wish to recycle.
Wool blankets are commonly used in restorative yoga, prenatal and Iyengar and are a great substitute for a bolster. They are great for any postures relating to meditation and rest, as well as Savasana. Some yogis like placing it under their knees or back during Savasana for added comfort.
We have combed each Wool Blanket to reduce shedding and pilling but, like any wool product, fibers can come loose and separate. The dense weave of the Wool Blanket makes it resistant to stretching and super warm!
We recommend dry cleaning the Wool Blanket, as this will give it the best care and allow for a prolonged lifespan.
If you must to wash the Wool Blanket, we suggest hand washing or washing in a delicate cycle, using mild detergents. Do not put it in the dryer; always hang dry on a line. You may also iron the Wool Blanket!
Bolsters are commonly used in restorative yoga, prenatal and Iyengar, but can be a valuable prop in any style. They are very helpful for postures relating to meditation and rest.
Some yogis like placing them under their knees or back during Savasana for added comfort. Using a bolster can be a comfortable way to open the chest and help one focus on their breathing.
Remove cover from bolster before washing and machine wash cold, preferably with powder detergent. Hang drying is preferred or tumble dry on low. When re-covering bolster, please make sure the seam of the inner bag lines up identically with the zipper, so that the bolster's shape is cylindrical with minimal twisting.
We feel it’s safest to know exactly what is coming into contact with your water. This is why safe, non-leaching, and durable 304 grade stainless steel is used.
Aluminum is known to leach various chemicals, which are bad for your health. To counter leaching, many aluminum bottle companies will line the inside of their bottles with an epoxy, ceramic, plastic, or other unknown coating. These coatings have been known to leach or crack over the life of the bottle.
The Stainless Steel Water Bottles are made of a 100% BPA free stainless steel. We do not add any inner linings or plastics and the bottles are 100% recyclable.
The plastic cap is made with 100% BPA free Polypropylene #5 plastic.
The non-slip pad on the bottom of the bottle is a safe non-toxic EVA (Ethylene Vinyl Acetate). EVA is a common material that is recyclable and used in many products, including baby teething toys.
You may carry any cold liquids including juice, soda, milk or alcohol, as our bottle is designed to withstand deterioration caused by acids in citrus juices or soda drinks. However, stainless steel is a great conductor of heat so we do not recommend that you pour hot liquids into your canteen.
For day to day cleaning, a simple rinse with warm, soapy water, followed by air drying with the cap off works great. Although they are dishwasher safe, we recommend that you hand wash your Stainless Steel Water Bottle with a nonabrasive pad or brush for a safer and better cleaning. If an even deeper cleaning is desired, you can rinse your bottle with a baking soda or vinegar solution.
Meditation Cushions are commonly used in restorative yoga and meditation practices, but can be a valuable prop in any style. They are very helpful for alignments in long sitting sessions.
Some yogis like sitting on it in Sukhasana (easy pose) to elevate and support their hips.
Machine wash on cold with like colors. Tumble dry low or hang dry. We do not recommend using dryer sheets or scented detergents.
Inner cover can be washed and dried but remove all buckwheat hulls beforehand.
As a note, wetting or soaking the buckwheat hulls will compromise the function and integrity of the hulls. If buckwheat hulls do get wet and become damaged, they can be replaced with new hulls. Buckwheat hulls can be purchased from your local grocer.