Our products


  • 2.1   - 1.5 inch inseam length, dual pouch with fly, sports waistband

  • 3.0   - 3.5 inch inseam, single pouch, no fly

  • 3.21 - 3.5 inch inseam length, dual pouch with fly, fabric covered waistband

  • 4.0   - 3.5 inch inseam length, dual pouch with fly, sports waistband

  • SHEATH V - 6 inch inseam length, dual pouch with fly, sports waistband

  • SHEATH Brief - dual pouch with fly

  • SHEATH Men’s Bamboo Trainer Tee shirts - made of 65% Bamboo, 28% Cotton, and 8% Spandex

  • SHEATH Base layers



  • Women’s Cheeky Boyshort

  • Women’s Bikini Briefs

  • Women’s Bamboo Trainer T-shirt - made of 65% Bamboo, 28% Cotton, and 8% Spandex

  • Women’s boxer brief

  • SHEATH Women’s Bamboo Trainer T


Size Chart (Men)

  • Small - 28-30

  • Medium - 32-34

  • Large - 36-38

  • XL - 40-42

  • XXL - 44-46

  • XXXL - 48-50


Size chart (Women)

  • XS - 24-25 waist or Dress size 0/2

  • S - 26-27 waist or Dress size 4

  • M - 28-29 waist or Dress Size 6

  • L - 30-31 waist or Dress size 8/10

  • XL - 32-33 waist or Dress size  12/14

Q: How do I find the right size for me?
A: Our size chart (shown above) should give you a pretty good idea but we understand that some people are in between our sizes. We recommend sizing up.

Q: What is SHEATH Underwear made out of?
A: Well, our underwear is 95% Modal and 5% Elastane. Modal is a semi synthetic material made from the beech tree. It is an antimicrobial, moisture wicking, breathable, and very flexible material.

Q: How do I wash my SHEATH Underwear?
A: We recommend washing on delicate (cold) and drying on a low heat tumble dry for longevity of our product.

Q: Are the pouch sizes different?
A: No, our pouch size is the same in all of our models. As you go up in waist sizes, our pouch size remains the same. The dimensions of the pouch are four inches deep, five inches wide.

: What is the return policy?
A: We have a 100% satisfaction guarantee. If you try us out and we aren’t for you, we can send you one pair of a different model to try free of charge or we can refund your first pair no questions asked.

Q: How do I enter a promo code?
A: At checkout there is an option to enter your promo code.

Q: Why isn’t my promo code working?
A: Our promo codes are case sensitive. Please make sure you have entered the promo code as shown. Please also to be sure the items you are purchasing fall under the promo code criteria.

Q: Warranty on your products?
A: SHEATH will replace any pair that is received faulty or damaged.

Q: What is the process for exchanges?
A: If you would like to exchange an unopened pair for a different size or model, 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!

: How do I change the currency?
A: Currency is automatically adjusted based on the geo-location of your IP address.

: Where’s my order?
A: Your order is usually shipped out within two days of ordering. A tracking number is attached to your email confirmation. If your order is not received after a week (US) or 2-3 weeks (International), contact our customer service contact@sheathunderwear.com and we will get to work on solving this issue for you.

Q: Is SHEATH for me?
A: SHEATH is for anyone looking for breathable support and separation in their underwear. Give us a try!

Q: Why was SHEATH invented?
A:Initially the creation was made simply to serve the purpose of fixing my own personal comfort until it was highly encouraged that the idea be converted from a personal invention into an actual product on the Market.

Q: Do you ship internationally?
A: YES! We do ship internationally via USPS, DHL and UPS. We ship anywhere in the world & we have distribution capabilities out of the Blackpool, England to provide shipping for all of the UK without incurring the huge shipping costs from the United States. We also use DHL for most international orders over 75$; excluding Australia and South Africa. We are also now shipping out of Ontario Canada via Canada Post to alleviate customs. We will ship with the best service in priority but some orders will need to be shipped USPS to provide economical shipping prices for our customers. If your order is over 75$, we will definitely ship DHL.

Q: Where are SHEATH made?
A: SHEATH Underwear are currently made in Zhongshan, a highly technical area of China best known historically for their role in the first Opium War (don't worry, they lost and are clean off the dope). The area later turned into the Qing Dynasty. It is near a rural area that is known for rice and other agriculture where nearby they have this state of the art production facility for garments where SHEATH as well as Sly, and other underwear brands are made. The workers rotate in and out from the factory to the farm and they do a fantastic job. They enjoy their roots of share cropping and are very professional and meticulous in all of their work. From what we can tell their society is improving from world trade. Their people seem to be extremely well taken care of with over a month off annually from any work in February, for celebration of the Chinese new year.  

Q: When were SHEATH invented?
A: It was 2008 in the midst of the Iraq war when an Army Sergeant Robert Patton serving his second tour in the desert had a vision for a new design of underwear that would eliminate future irritation resulting from the sticking of balls to the inner thigh under extreme circumstances such as in a war zone. Turns out they also work in less extreme conditions as well. After he had the idea and had some garments made for himself, years passed that included an honorable discharge from the Army, followed by over a year working with a professional tailor from Vietnam, and then in 2013, SHEATH launched a successful Kickstarter which crowdfunded the current SHEATH 2.0 version available for sale on this site. There was a great deal of effort being taken in perfecting the design.