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G3 Men's Boxer Brief | CoolNylon | Black

Our G3 CoolNylon Made in USA Men's Underwear Boxer Briefs offer room where guys want it & support where they need it. Experience a whole new level of under comfort.

One boxer-brief per pack.


Buy 3 or more at $28 each

Like going commando, but way better.

Packed full of the latest innovations in design, fabric, and construction, our G3 Boxer Briefs will help you perform at your very best.

The Finer Details

  • Our signature CoolNylon silk-like body-friendly stretch fabric wicks+absorbs, keeping you feeling dry & comfortable
  • Enjoy a wedgie-free, no bunching wearing experience. Put them on, forget you're wearing them
  • X3Pouch™ design provides a 3-dimensional chamber for the boys giving them room + support
  • Beat muffin-top & boost confidence with our low profile, anti-pinch & anti-roll hidden waistband
  • Abrasion & odor resistant fabric
  • Chafe-free flat-lock seams with contrast stitching
  • TagFree care label
  • Made in the USA

In a nutshell, this is crazy-comfortable underwear that you'll never want to take off.

Happiness :) & Fit Guarantee

We're pretty sure you're gonna love our G3 Boxer Briefs, and we're committed to making sure you're as comfortable as possible.

That's why we offer FREE size exchanges, plus a lot more. See our Underwear Returns section for details.

Got A Question?

Please view our Sizing chart, the Specifications tab & Underwear Sizing guide.


Ask us. We're here to help!

What our customers are saying…

  • These are amazing. I forget I'm wearing them.
  • Phoebe

I walk for 12 hours a day for work and I need underwear that doesn't ride up and wicks moisture. These are amazing. I forget I'm wearing them.

-- RibbedTee Response --
Like going commando, right? Thank you so much Phoebe!!

  • Jon Proulx
  • Super comfy but really wish they had a fly

The are super comfy and they don't ride up.

But I do wish they had a fly with my coffee habit it can be quite an annoyance. After a couple months of once a week wear the fabric did start to pill a bit on inner thighs, not too badly but something to be aware of.

First impressions were amazing so as the secondary issues came up it was a bit disappointing they weren't the sublime perfection they seemed, but still would recommend just keep your expectations reasonable.

-- RibbedTee Response --
Thank you Jon for sharing your feedback with us. We really do appreciate it, and will be sure to forward your comments and suggestion to our product team!

  • B.W.
  • Most comfortable underwear I’ve worn

Very light and comfortable. I haven’t worn them during heavy physical activities, but during regular daily wear they are amazing.

-- RibbedTee Response --
Love it! Thank you BW for sharing your comments with us. So happy to hear that our G3 boxer briefs are the most comfortable underwear you have worn!

  • Phoebe
  • These underwear are amazing

I walk for 12 hours a day for work and I need underwear that doesn't ride up and wicks moisture. These are amazing. I forget I'm wearing them.

-- RibbedTee Response --
That's music to our ears Phoebe! Thank you so much.

  • Jason N
  • Super Comfortable

These briefs are super comfortable and have no restrictions in movement. I bought these due to being made in the USA and all the great reviews I read. After receiving these and wearing a few times I will definitely be purchasing more in the future. It would be awesome if ribbedtee would come out with a brief version as well.

-- RibbedTee Response --
Thank you Jason for that glowing review! We'll be sure to share your suggestion about offering underwear briefs with our team :)

  • Private
  • Very good Made in USA underwear

Since COVID19 buying American made products has become very important to me as a consumer. I also wanted underwear that feels and looks great. My first pair of underwear from your company met that all three of these requirements, so now I'm ordering my second pair.

-- RibbedTee Response ---
Thank you for your order, and for the great rating! We're happy to know you're enjoying our American-made G3 Boxer Briefs :) We sure appreciate your support and your order! Stay comfy

  • Maureen
  • More comfortable than any other underwear

Very pleased with purchase. My son works for a construction company. He often on the road 10 or 11 hour days, climbing, lifting, and operating heavy machinery. Evan takes medication that makes him sensitive to heat, and with the high temperatures we experienced this Summer, he's been sweating more than usual. He's able to change his shirt as needed during the day, but has no way to change his underwear, and has developed painful heat rashes.

I told him I would shop for boxer briefs that have the features he needs - moisture-wicking, comfortable, and long enough to protect the upper inside thighs. At first, he argued they were too expensive. When they arrived, though, he changed his mind. Evan said they are more comfortable than any he's ever worn, even after 11 hours in the sun in 95 degree heat.

-- RibbedTee Response --
So wonderful to hear Marueen! We can't thank you enough for sharing Evan's feedback with us, and we're so thrilled to hear that our G3 boxer briefs are keeping his privates protected :)

  • Jay B.
  • Best Underwear Ever.

I'm very particular about my underwear-- I need a good amount of room in the pouch, material that doesn't ride, breathable fabric, ample support, and something that doesn't lose its shape after a wash. I'd found a pair or two that checked most boxes, but nothing that could do it all. Until I happened upon RibbedTee. I decided I wanted to support American-made businesses and found them through an internet search. This brand checks EVERY box I have, with the added bonus of feeling like I'm wearing nothing! I can't recommend these enough. If nothing else is certain, I know I will be a lifelong customer of RibbedTee.

-- RibbedTee Response --
Wow, thank you Jay for the INCREDIBLE review of our G3 boxer briefs!!! We're so happy you found us, and are enjoying your new American-made underwear ;)

  • Lee Gladin
  • Comfortable

I recently purchased some of the G3 Men's Boxer Brief to replace some old worn out pairs of old underwear I owned. The G3 Men's Boxer Brief are very comfortable. Ribbed Tee even took the important step to stitch them a certain way so as not to rub uncomfortably against your skin. So far I'm really pleased with my purchase of Ribbed Tee G3 boxer briefs. I've only had them a couple of months, so I cannot speak to the longevity. However, judging by the way they are made, I'm sure they will last me a very long time!

-- RibbedTee Response --
We're so happy to hear it Lee! Thanks very much for taking the time to review our G3 men's boxer briefs!

  • Moose
  • MADE IN U.S.A.

Buying American is the foundation to support the citizens of this great country. In my quest to find a quality pair has been challenging, however, persistence and patience has paid off. These underwear are everything they say it is and more. They feel great, support the family heritage and are worth every penny. I purchased 3 colors as a trial to see how they held up. I will be purchasing more and keeping America moving forward and supporting the hard working men and women of the U.S.A. Thank you.

-- RibbedTee Response --
Thank you very much Moose! We can't thank you enough for sharing your thoughts, and for supporting us and our Made in USA underwear!

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