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G3 Men's Boxer Brief | CoolNylon | Royal

Our G3 CoolNylon men's 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 U.S.A.

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…


Best briefs I ever had, plus they are made here!!!

-- RibbedTee Response --
Well now, that is one of the best endorsements we've heard about our G3 Boxer Briefs! We're the BBBMIA (Best Boxer Briefs made in America)! Thank you Shawn.

  • Comfortable. Band is itchy.

The only complaint I have is that the band is itchy. It's basically about a centimeter of fabric, folded over and sewn, so that the folded over bit is on the inside. It leaves a stitched edge that's irritating. I ended up wearing them inside out, so the folded over bit is on the outside, and they're absolutely comfortable.

-- RibbedTee Response --
Thank you Anon! We'll be sure to share your feedback about the waistband stitching with our Production team.

  • Mark
  • Provides great support both as a product and place of manufacturing

Great fabric, good fit, decent value and made in America supporting local industry. What could be better?

-- RibbedTee Response --
Thanks so much Mark! We're proud to be offering Made in USA Men's underwear, and couldn't be happier that you took the time to share your review of our G3 men's boxer briefs with us!

  • Mark Baer
  • Terrific Fit Fabric and Petigree

An excellent product with terrific fit and fabric. Plus, it's great to support a made in the USA product.

-- RibbedTee Response --
Thank you Mark! We're so happy you're enjoying the fit & comfort of our Made in USA men's underwear!

  • Jason
  • Awesome G3

I’ve been wearing UA boxer jocks for over ten years. Found these while looking for some good made in USA underwear. Couldn’t be happier!! Will be slowly replacing my UA with these. Almost like you’re not wearing anything. Stay in place and as comfortable as can be. And of course MADE IN USA!!!!

-- RibbedTee Response --
Whoo Hoo! That's great stuff there Jason! Thank you so much for taking the time to submit your review & feedback for G3 Boxer Brief Made in USA Men's Underwear!

  • Marshall
  • Really comfortable!

The G3s are great! Very comfortable and supportive. I ordered more after the first one.

-- RibbedTee Response --
We really appreciate that Marshall! Thank you for your review of our G3 Men's Boxer Briefs. Wishing you and your family a very Happy Holiday / Merry Christmas, and a prosperous New Year!

  • Patrick
  • A home run

You really hit a home run with the G3 Boxer Briefs! The redesign is perfect. I can work out, run, do martial arts without any ride up and all my parts stay where they are supposed to without being compressed. Of course the material is still top notch. Great work!

-- RibbedTee Response --
Thank you so much Patrick! We're so happy to hear you are happy with the updated design in our G3 boxer briefs!

  • Rafael Castillo
  • G3 Men's Boxer Brief

As with the micro modal tees, these and the G2 underwear are my #1 go to underwear. I need to buy more because I get a bit disappointed when I run out of clean Gs! :-) Shipping is wicked fast. I order on Monday and they arrive on Wednesday. I will order again.

-- RibbedTee Response --
Oh yeah -- you never want to run out of clean Gs! Thank you Rafael :)

  • Bob Olejar
  • Be prepared... They're amazing

These are great but come with a word of caution. I have a lot of money invested in my underwear and now these came into my life. Ugh. They are so good the other brands will have to go. I'm in love.

-- RibbedTee Response --
Buyer beware -- you will fall in love with our G3 Boxer Brief underwear! That's great stuff Bob -- thank you!

  • Scott Ferris
  • Much Improved!

The G3 edition is a great improvement from the G2! Great customer service!

-- RibbedTee Response --
Hi Scott, thanks so much for your kind words. We're happy to hear you are enjoying your new G3 Boxer Briefs!

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