SHEATH is for anyone looking for breathable support and separation in their underwear. Give us a try!
Take a look at our sizing chart here! We understand some people are in between our sizes, in which case it is advised to size up for a more relaxed fit or size down for a more snug fit. For the best fit with SHEATH, it will depend on your build and if your weight fluctuates. If you're of the slim and lean body type with thinner thighs and smaller butt, keeping to your usual underwear size is advised. If you're on the broader side with larger thighs and butt, you may find a size up to your liking. SHEATH should fit like a second skin - snug, but not tight, allowing the isolative pouch work its supportive magic.
Our underwear is available in a variety of cuts, designs, pouch types and fabric types. Below is a quick guide to our underwear catalog. For additional information on a product, please visit its product page linked in the descriptions below.
2.1 Trunks - 3.5 inch inseam length | dual pouch with fly | athletic waistband | signature 92% Modal & 8% Elastane fabric blend
2.1 Bamboo Trunks - 3.5 inch inseam length | dual pouch with fly | athletic waistband | signature 95% Bamboo & 5% Elastane fabric blend
3.21 Boxer Brief - 5 inch inseam length | dual pouch with fly | fabric covered waistband | signature 92% Modal & 8% Elastane fabric blend
G6 Bamboo - 5 inch inseam length | dual pouch with fly | fabric covered waistband | signature 95% Bamboo & 5% Elastane fabric blend
4.0 Boxer Brief - 5 inch inseam length | dual pouch with fly | athletic waistband | signature 92% Modal & 8% Elastane fabric blend
4.0 Boxer Brief Bamboo - 5 inch inseam length | dual pouch with fly | athletic waistband | signature 95% Bamboo & 5% Elastane fabric blend
AirFlow Boxer Brief - 5 inch inseam length | dual pouch with fly | athletic waistband | ultra-breathable 94% Polyamide & 6% Elastane blend
SHEATH V - 8 inch inseam length | dual pouch with fly | athletic waistband | signature 92% Modal & 8% Elastane fabric blend
SHEATH V Bamboo - 8 inch inseam length | dual pouch with fly | athletic waistband | signature 95% Bamboo & 5% Elastane fabric blend
SHEATH V Single Pouch - 8 inch inseam length | single pouch with horizontal fly | athletic waistband | traditional 92% Modal & 8% Elastane blend
French Cut Brief - dual pouch with fly | fabric covered / athletic waistband options | signature 92% Modal & 8% Elastane fabric blend
Base Layers Bottoms - full length leg | dual pouch with fly | athletic waistband | signature 92% Modal & 8% Elastane fabric blend
Bikini - traditional panty-cut | athletic waistband | signature 92% Modal & 8% Elastane fabric blend
Cheeky Boyshorts - high-rise boyshort cut | athletic waistband | signature 92% Modal & 8% Elastane fabric blend
Women's Boxer Brief - full coverage boxer brief cut | athletic waistband | signature 92% Modal & 8% Elastane fabric blend
Sports Bralette - unlined cups | athletic ribcage band | non-adjustable straps | signature 92% Modal & 8% Elastane fabric blend
SHEATH is primarily crafted using our signature 92% Modal / 8% Elastane fabric blend. Modal is a semi synthetic material made from the beech tree. It is an antimicrobial, breathable, and very flexible material. It is exceptionally soft, drapes well, resists creasing, and has a smooth lustrous finish. Because modal is both absorbent and air-permeable, it remains cool to the touch in even the most stifling heat.
In addition to modal, we have expanded into other fabric options for select products, such as Polyester, AirFlow Polyamide Mesh, and Bamboo.
Yes, the pouch size increases slightly in proportion to the underwear as you go up in sizes. However, the width of the pouch does not change.
For longevity of our product, we recommend you wash them separately in cold water and use the lowest dryer setting to protect the elastic and material. If you need MORE cleaning power, you can use Vinegar for its disinfecting properties. One delicate cold vinegar cycle and then a delicate cold detergent cycle.
To best preserve the elastic, line dry your underwear, or lay flat to dry. If the waistband is rolling or anything has torn/ripped, then you could be in the wrong size, or the material was damaged due to heat from your dryer.
It was in 2008 during the sandstorm of the Iraq war, when a United States Army Sergeant Robert Patton, in Camp Speicher, Tikrit had a vision for an innovative design of underwear; SHEATH. This underwear would have a pouch sewn on the inside of the crotch area and would eliminate the balls from sticking to the inner thigh. A simple concept. By separating the balls from the thighs, future irritation from heat, sweat, and friction would be canceled.
Two prototypes were made without delay in Tikrit, Iraq that summer. Years then passed including a soft launch of sheathunderwear.com in 2010, an honorable discharge from the Army in 2011, and a year of training with a professional tailor from Vietnam in 2012. Then in 2013, SHEATH launched a Kickstarter which successfully crowdfunded the once flagship SHEATH 2.0, which is no longer an option to purchase as it has become obsolete due to further innovation.
SHEATH are built by our expert teams of artisan tailors and crafters in the historical Chinese provinces of Guangdong and Zhejiang. To learn more, visit Our Factories.
Yes! For those looking to leave choice in the hands of their loved ones, we offer the SHEATH Gift Card as an option. Simply select your denomination and proceed through the checkout process as usual. Your unique Gift Card code will then be emailed to you and you can then forward it to your recipient.
Returns & Exchanges
If you find that SHEATH is not right for you, or if you think one of our other styles would suit you better, we will either refund or replace your first pair without question within the first 30 days of receiving them, shipping charges not included. For this reason, we recommend only ordering a single pair for your first time trying our products to see if SHEATH is right for you.
We have a strict return policy in place for the health and safety of everyone. We do not accept any item for return once it has been opened, whether or not it has been tried on or worn. We can only accept any unopened items for a refund or replacement.
If your order qualified for free shipping and you have tried a single pair from your order and have decided to return the remaining unopened items for a refund, we will refund you the amount paid in full minus the cost of return shipping once the unopened items have been received and inspected. Return shipping rates will be determined by location.
If your order was shipped abroad and you have tried a single pair from your order and have decided to return the remaining unopened items for a refund, we will refund you the amount paid in full minus the cost of return international shipping once the unopened items have been received and inspected. Return shipping rates will be determined by location.
SHEATH stands behind the quality of our products and their performance 100%. We offer a 6-month Manufacturer Warranty to cover any defect in fabric, construction, finish or workmanship (this does not include stains from regular use or incidental damage i.e. cigarette burns). In the event of a confirmed defect, we will gladly ship out the replacement piece at our cost. Please send a photo of the affected area and description to email@example.com. Only the defective items of the order will be replaced.
We have a strict return policy for sanitary reasons. Once a pair has been opened, we cannot accept them back. Please keep them and re-gift or donate them as you see fit. We can take back unopened items for refund or replacement. If you would like to exchange an unopened pair for a different size or style, we will send you out the replacement pair once we receive the original pair. Just send us back the original pair and you’ll be good to go!
Yes! We currently ship to the following international countries:
Aland Islands, Albania, Andorra, Anguilla, Antigua & Barbuda, Argentina, Armenia, Aruba, Australia, Azerbaijan, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bermuda, Bolivia, Bosnia, Botswana, British Indian Ocean Territory, British Virgin Islands, Brundi, Bulgaria, Burkina Faso, Cameroon, Canada, Cape Verde, Caribbean, Cayman Islands, Chile, Christmas Island, Cocos (keeling) Islands, Colombia, Comoros, Cook Islands, Costa Rica, Cote D’lvoire, Croatia, Curacao, Cyprus, Czechia, Denmark, Dijibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Estonia, Eswatini, Ethiopia, Falkland Islands, Faroe Islands, Fiji, Finland, France, French Polynesia, French Southern Territories, Gabon, Gambia, Georgia, Germany, Ghana, Gibbon, Gibraltar, Greenland, Grenada, Guatemala, Guemsey, Guinea, Guinea-Bissau, Guyana, Haiti, Herzegovina, Honduras, Hungary, Iceland, India, Indonesia, Iraq, Ireland, Isle of Man, Isreal, Italy, Jamaica, Jan Mayen, Japan, Jersey, Jordan, Kazakhstan, Kenya, Kiribati, Kosovo, Kyrgzstan, Lativa, Lebanon, Liechtenstein, Lithuania, Luxembourg, Macao SAR, Madagascar, Malawi, Malaysia, Maldives, Maldova, Mali, Malta Mauritania, Montenegro, Montserrat, Morocco, Mozambique, Nambia, Nauru, Nepal, Netherlands, New Caledonia, New Zealand, Nicaragua, Niger, Nigeria, Niue, North Macedonia, Norway, Oman. Pakistan, Palestinian Territories, Paraguay, Peru, Philippines, Pitcairn Islands, Poland, Portugal, Qatar, Reunion, Romania, Rwanda, San Morino, Sao Tome & Principe, Senegal, Serbia, Singapore, Sint Maarten, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Georgia & South Sandwich Islands, South Korea, Spain, Sri Lanka, St. Barthelemy, St. Helena, St. Kitts & Nevis, St. Lucia, St. Martin, St. Vincent & Grenadines, Suriname, Svalbard, Sweden, Switzerland, Taiwan, Tanzania, Thailand, Togo, Tokelau, Tonga, Trinidad & Tobago, Tunisia, Turkey, Turks & Caicos Islands, Tuvalu, U.S. Outlying Islands, Uganda, Ukraine, United Kingdom, United States, Uruguay, Uzbekistan, Vanuatu, Vatican City, Venezuela, Vietnam, Wallis & Fotuna, Western Sahara, Zambia, Zimbabwe
If you do not see your country listed, please reach out to our customer service (firstname.lastname@example.org) and they will provide a better explanation.
All US domestic orders are shipped via USPS and all International orders are shipped via GlobalPost.
Shipping is free for all orders over $120 USD in US and Canada. All other worldwide shipping is free for orders over $250.
At the time of shipping, an email containing an order status page and tracking link should have been sent to the email associated with the order.
You can also track your order from your account dashboard on our website by registering an account using the email you used to place the order.
Your order is usually shipped out within two business days of ordering. A tracking number is attached to your email confirmation. If your order is not received after a week (US) or 3 to 6 weeks (International), contact our customer service email@example.com and we will get to work on solving this issue for you. Please allow for a couple of extra days during sales, holidays and pandemics.
At checkout there is prompt box to enter your 'Gift Card or discount code'. Enter the code and hit apply. If you are shopping via a mobile device, this discount code field may be collapsed within your order summary at the top of the checkout page - click the dropdown arrow to unfold this section and enter your discount code.
Our system does not allow codes to be stacked. Only one discount can be used at a time.
Gift Cards can be redeemed at checkout by entering your unique Gift Card code in the promotional code field while checking out. Gift Cards can be used in combination with promotional discount codes.
There is a currency selection drop down menu located at both the top and bottom of our website.
In order to access SHEATH Build-A-Pack, you must be a returning customer with an account that has at least one previous order. Because of the uniqueness of our products, we encourage first time customers to only try one pair to ensure that SHEATH is right for them.
The Build-A-Pack was created for our recurring customers who are looking to save on large quantities of SHEATH and already know their size and what style(s) they prefer. Please be sure your size/style is correct before checkout and apply the code that best suits your purchase.
NOTE: ALL ORDERS PURCHASED USING BUILD-A-PACK ARE FINAL UNLESS PRODUCT IS FOUND DAMAGED UPON ARRIVAL
Our team is listening to you and your concerns. We're aware of the issues with our previous rewards program and can only improve with honest feedback. As a small business, we're grateful everyone has been vocal.
Based on the feedback from our customer base, we have decided to end our current rewards program. We will be exploring a new approach in the coming months that will not only benefit our amazing customers, but will be user-friendly.
This change will not have an effect on our Build-A-Pack program, which will continue to be available to all customers returning customers.
If you have any concerns about this change, please do not hesitate to reach out to our customer service at firstname.lastname@example.org. They would be happy to help!