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🩲 Elevate your essentials: Support, comfort, and coolness that won’t quit.
SHEATH 3.21 Men's Boxer Briefs combine a 5-inch inseam mid-thigh fit with a patented dual pouch system featuring a vertical fly for unmatched support and separation. Crafted from a premium 92% modal and 8% spandex blend, these boxer briefs offer superior moisture-wicking, breathability, and softness. The fabric-covered elastic waistband delivers irritation-free comfort, while the durable stretch fabric ensures maximum mobility for everyday wear or intense activity.











| ASIN | B01ND0SQUU |
| Additional Features | Elastic Band |
| Age Range Description | Adult |
| Best Sellers Rank | #148,848 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #534 in Men's Boxer Briefs |
| Bottom Style | Boxer Briefs |
| Brand Name | SHEATH |
| Care instructions | Machine Wash |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 963 Reviews |
| Fabric Type | Modal |
| Fabric type | Modal |
| Fit Type | Standard |
| Import Designation | Made in the USA and Imported |
| Item Type Name | Boxer Briefs |
| Manufacturer Part Number | 3.21 |
| Material Type | Modal |
| Origin | Made in the USA and Imported |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Rise Style | Mid |
| Size | Medium |
| Sport Type | Multi-Sport |
| Style Name | Modern/Fitted |
| Style Number | 3.21 |
| Subject Character | UFC |
| Theme | Sports |
| UPC | 855687005882 |
| Unit Count | 1 Count |
H**M
Sexy and comfortable!!
Not only are SHEATH SEXY but the material is soft to the touch and breathable. They fit my husband perfectly in all the right places. Keeps his bits dry and separated, no more doing the sweat squats! This isn't his first pair of SHEATH 3.21 mens boxer briefs, I'm a return costumer. These boxers aren't just appreciated by men.
L**T
The best!
Finally, the perfect pair of men’s underwear. I’ve tried two other “pouch” style underwear and these put the others to shame. The Lapasas are comfortable but they lack a fly and look ridiculous. I’m not sure who the David Archys are designed for either. They ride super high on the waist and offer zero support for the boys. Plus, if you’re a “grower”, good luck getting Mr. Happy to stay in his pouch with the David Archys. The Sheaths on the other hand are perfect. The dedicated pouch for the boys work like a charm. Once “hooked” in, they stay there and Mr. Happy stays put in his separate pouch as well. And all that without sitting high on the easier as well as the benefit of a fly! That said, if your little man is a “shower”, I can see where you might have a problem keeping him from popping out of the fly on his own. These underwear have it all and it will be all I’ll buy for the foreseeable future.
K**.
Happy investment.
I was hesitant on the price to dish out this much initially but am pleasantly surprised. Best dual pouch I've found so far. Really comfy, the ball pouch actually holds your nugs when other brands just give you a little extra space that can still cause your sac to get bunched up under your butt. The pouch completely hold your jewels in place with enough room for them to wander as they please. Would/will buy again. the fabric is a nice material but the only thing I would change is maybe using a bamboo material that breaths better. These breath fine but are a bit warmer compared to my less comfortable dual pouch underwear that I was wearing regularly before these. would recommend
P**D
Thank God for these!
I was hesitant to order these, as I've read many people complain online about similar products by other brands, and how they don't hold your junk in place very well. After further pondering, and many instances of getting frustrated while walking and/or jogging around, and having to stop every so often to reach my hand down my pants, and pull my junk out from in between my legs, I decided to give them a try. I couldn't be happier. They are so comfortable, and they actually perform as they claim. My junk stays comfortably in the pouch, and my hot dog stays in it's separate hole, even working it's way through on it's own when I forget to do it manually. These are a little more revealing during times of crisis (think frozen hot dog, aka: stiffy), but as long as your pants fit, I wouldn't worry. Might be a different story when wearing loose shorts to the gym or something. The only time I have noticed these not keeping my junk in the pouch is when performing any type of deep squatting movement. If I am doing squats, deep seated leg press, or anything like that where I have to bring my knees up close to my body, the jewels do fall out of the bag, but besides those instances, these are fantastic. I primarily bought them for days when I am doing a lot of walking, jogging, standing, etc., and they are perfect for that. I've already purchased a second pair, and plan to get more down the road.
K**I
Great quality
My husband only wears this brand now every pair I've bought has been great quality. They're a little pricey but they don't deterate like other brands even after years of washing. Worth the investment in my opinion.
N**E
A place for everything and everything in its place.
As an avid hiker and walker I bought a pair of these manhood sectioning underwear to resolve a sweating/chaffing situation at my base camp. and found them to be quite comfortable after a bit if getting used to. One solid point I do have to mention is they will accentuate your package by making it protrude forward a bit further, {In no way is this a bad thing but you may get more looks.} However US more well endowed guys may find the separation pouches a little small. and the outer fly exit is at the bottom not on the side like standard equipped underwear so exposure of tip can be expected
J**M
Satisfied
Happy
E**L
Good news/bad news
Good news and bad news: Nice, generous pouch. Not sure what some of these other skimpy-pouch underwear people are thinking. If your balls are smaller, they fall out. If you're larger, they fall out. Constant re-adjusting. Plus, it is essential, to me, anyway that the scrotum does not thigh-rub. I am older/active active and sweating could be problematic. Sheath pouch is ample. Bad news is: Too much money. Dump the redundant penis-hole. Less complicated and probably cheaper to make. The ball is in your court.
A**W
Worth Every Penny!
So pleased with these, I now have 11 pairs. Well worth the investment, and standing up well to wear and washing.
D**L
Very very comfortable
Loved the fit of the underwear and the the feeling of good separation and sweat control after a very physical 8 hour shift
J**S
Sólo buen diseño
Buen diseño. Pero ... soy talla 30 , compre talla chica supuestamente para cinturas de 28 a 30... Y el boxers me quedo algo flojo.. no hace fit en mi. Antes de que me llegará el producto intenté contactarme con el vendedor dos veces , por medio de la app y por medio de servicio al cliente de amazon y en ni uno de los casos contestó. El producto hubiera sido excelente si tubieran los tamaños adecuados a las medidas que dice el boxer u ordenadas.
C**N
Perfect Fit and Good Functional Design
They're very comfortable, fit very well and work as they're supposed to.
R**Y
Keeps everything seperated
Keeps each part seperate in its own compartment, resulting in no sweat build up at the creases, and eliminating the chance of chafing.
Trustpilot
1 month ago
1 month ago