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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…

  • 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!

  • They Run Bug

I've bought 3 pairs. I always wash in cold water and hang up. No issues whatsoever with the quality. I bought a couple pair of G2. I would've never bought your product anymore especially for the price if i bought G2 product first. I've never worn small in my life. This seems to be the right size for me. I've bought 5 pair of boxer briefs trying to get to the right size and have returned none. It does seem a shorter length of the G3 the way they are designed would work really good. In the meantime, the G3 small work better for me, but $30 a pop is a lot to find the right size.

-- RibbedTee Response --
Thanks so much for your review of our G3 Boxer Briefs! You'll be happy to know that we are expecting to release a Trunk version of our G3 CoolNylon underwear, that will have a 4" inseam, vs the 6" inseam that is present on our G3 Boxer Brief underwear. Also, we offer free size exchanges on our G3 underwear, even for items that have been tried on. Please see our Happiness & Fit Guarantee for more information.

  • Scott
  • Mixed Feelings

I was attracted to this product because it is Made in USA! I was also searching for something comfortable. The extra room in the pouch and comfort seam around the pouch is a big plus - especially for someone like me who drives over 50K miles per year! No bunching, no wedgies, no more irritation - check. But I am not super excited about the quality to date. Within one wear, pairs began to loose the RibbedTee logo lettering, which attracted lint to the adhesive. Overall, they attract lint from any pants/shorts I wear. As for the anti-roll waist band...failure. It has only been a month since purchase, they are laundered and dried according to instructions, yet the waist bands are rolling over. I expected better.

-- RibbedTee Response --
Hi Scott, thanks so much for your 4-star review of our G3 Boxer Briefs, and your other feedback. We're sorry to hear about the issues you have experienced. Please contact us at your first opportunity so we can assist you with a free replacement pair of our boxer briefs.

  • Bill
  • G3 got it right

I ordered 2 pair of the G3 boxers and I can't say enough about the quality and fit. I also have the G2's but for me, I find the extra room in the pouch and the supportive design superior. The are both great products but the added inseam length, enlarged pouch and comfortable support makes this version a step above. It carries on the soft and durable materials and the waistband stays in place. Keep up the innovations!

-- RibbedTee Response --
Thanks so much Bill! We really appreciate the kind words and great feedback/review of our G3 Men's Boxer Briefs!

  • Tony
  • Good, but I miss the G2s

These are comfortable and better than typical underwear.
However, I feel these are a step-down from the previous G2's.
They are bigger, and heavier. The G2's were super light.
I tried only the size L on the G3, maybe M would be better. Size L fits me perfectly in the G2s.

-- RibbedTee Response --
Hey Tony, thanks for taking the time to review and provide your feedback on our G3 boxer briefs. Our G3 underwear are made from the same material as our G2 boxer briefs, however, G3 have longer legs (6" inseam vs 4" inseam on G2), and as such may feel a bit heavier, and look bigger due to the extra leg length.

We are planning other leg length variations of our G3, including a Trunk version with a 4" inseam, so keep an eye out for news about those later this year!

  • Nick
  • American Made Quality Once Again

I’ve been wearing this product for about a month. It’s easily the most comfortable underwear I own. I’ve used UA’s boxer jock for the past 5 years and am positive I’ll be replacing them with these. The product feels silky, has plenty of room for the jewels, and is almost cradle-like for your johnson. The length is very nice for those of us with large thighs and the waistband is not overly tight nor intrusive. Overall I’ll give the product 10/10. It’s American made, its American comfortable, it’s American durable.

-- RibbedTee Response --
Hi there Nick! Thanks so much for that amazing 10/10 review of our G3 Boxer Briefs!! We're so happy to hear you (and your jewels) are staying comfortable and confident :)

  • Steve
  • Gen 3 nails it

Ribbed Tee nailed the new Gen 3 CoolNylon Boxer Briefs! I must admit I was not a huge fan of the previous gen. I did not like the way they fit. Gen 3 solved that issue- longer in the thigh, and more room in the front, but still offers great support with some unique stitching. The CoolNylon is very comfortable, but I would love to see a cotton version. I ordered 2 pair when they were first released and I will definitely order more.

-- RibbedTee Response --
Thank you Steve! We really appreciate you taking the time to review our new G3 Boxer Briefs, and are so happy to hear you like all the new design innovations and changes we made. Thank you for noticing!

  • Peter
  • Supportive

Liking the G3’s have a more supportive feel. All around improvement from the already good G2’s.

-- RibbedTee Response --
Thank you Peter! We appreciate you taking the time to review our G3 Boxer Briefs, and are happy you find them to be more improved! That's what we were going for!

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