G3 Men's Boxer Brief | CoolNylon

(81 reviews) Write a Review
86% CoolNylon / 14% Spandex

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.

Got A Question?

Please view our Sizing chart & Underwear Sizing guide.


Ask us. We're here to help!

81 Reviews Hide Reviews Show Reviews

  • 5
    Underwear Review

    Posted by Warren S. on 22nd Jul 2020

    One of the most comfortable pair of underwear I’ve ever brought. Lightweight, breathable, and stylish. Wore a pair on a fishing trip and couldn’t be more happy. -- RibbedTee Response -- Sweet! Love it! Thank you for taking the time to share your feedback and review with us Warren! So happy to hear you are happy with our G3 underwear!

  • 5

    Posted by Bob Charles on 22nd Jul 2020

    Love them, so comfey -- RibbedTee Response -- Thank you Bob! We really appreciate the kind feedback and are very happy to hear you're enjoying your new G3 Boxer Briefs!

  • 5
    Best undies without a waistband

    Posted by John Couch on 3rd Jul 2020

    Pouch is comfortable. Lack of a waist band to roll or pinch is great! -- RibbedTee Response -- Boom, now that's what we're talkin' about :) Thank you John!!

  • 4
    They shrink, be careful

    Posted by Rob on 29th Jun 2020

    G3 boxer briefs are really comfortable and I will continue buying them but be careful how you wash them and definitely don’t put them in the dryer because they will shrink bad. Started with mediums but my first two shrunk to unwearable size so I bought large and I’m Hang drying them. -- RibbedTee Response -- Hi Rob, it is very strange to hear that you experienced any form of shrinkage with our G3 Boxer Briefs. Our underwear is pre-laundered, so it should not shrink, or shrink very little (1-2%), even if accidentally placed in a tumble dryer. We do recommend tumble dry low or lay flat to dry, which is the best way to care for your RibbedTee underwear. If you'd like to send back the underwear for inspection, we'd be happy to replace your underwear free of charge. Please contact us at your first opportunity and we'd be happy to assist you further.

  • 5
    All day comfort

    Posted by Joshua Munson on 25th Jun 2020

    I ordered 5 pair of assorted colors of the men's underwear. These are the most comfortable underwear I have ever owned. I was especially glad to see that they are made in the USA. There is no slipping of the underwear up or down, and they offer support without being restrictive. -- RibbedTee Response -- So happy to hear that Joshua!! Thanks so much for taking the time to share your feedback and review with us :)

  • 5
    Great Underwear

    Posted by David Geveke on 18th Jun 2020

    These are super supportive and comfortable. I’ve worn and washed them about five times already and they are as great as when they were new. And, they’re made in the USA. I’m planning to order three more. -- RibbedTee Response -- Sweet! That's good stuff there David. So happy you're staying comfortable & confident in your new RibbedTee G3 Boxer Briefs!

  • 5

    Posted by Husain on 17th Jun 2020

    Wears perfect and very comfortable. Will purchase again. -- RibbedTee Response -- Thanks so much Husain! Glad you're enjoying our Made in USA underwear!!

  • 5
    Very Satisfied with my purchase

    Posted by Kevin on 15th Jun 2020

    I had two goals: Buy underwear that held things in place. Buy underwear made in the USA. If you are willing to purchase underwear NOT made in the USA then this review may not be as helpful. I spent about an hour searching for the style of underwear I wanted that was made in USA. There are not a lot of choices for top line products made in the USA. I purchased one pair of ribbedtee and one pair from a competitor. Both pairs fit and felt great, but when I started working on an excavation project that took a few days I found out which brand to buy. With the ribbedtee product things stayed nicely inside the underwear no matter how hard I worked. The next day wearing the competitor's pair I was unhappy to have to stop work, reach down inside and put things back into place. The next day I ordered three more pairs of ribbedtee. The other pair from the competitor I only wear when I'm not going to be active. -- RibbedTee Response -- Hi Kevin, many thanks for sharing your review with us! To be honest, we couldn't be more thrilled to hear about how happy you are with our G3 boxer briefs. Thanks so much for your business, and of course, your support!!

  • 3
    Really like them except... significant pilling

    Posted by Jeremy Soza on 14th Jun 2020

    I like everything about these, my only issue is that my little over than a week old pair has significant pilling on the seat of the boxer briefs. I've hand washed them once and tonight I ran them in my washing machine on delicate and let them hang dry. I only noticed the pilling tonight but I'm not sure as to what is the cause. My only guess is that I wear a lot of nylon and other synthetic fiber fabric pants- maybe they are what is causing the abrasion to the seat of these that is leading to the pilling? I'd like to buy more, but only if I can figure out a way to prevent the pilling. I think hand washing is my only option for this pair though. -- RibbedTee Response -- Hey Jeremy, thanks for stopping by and sharing your feedback. It's quite strange to hear that the seat of the boxer briefs are pilling so quickly. It is possible there is some fabric abrasion going on between your pants, but it does seem strange still. Pilling can be cleaned from fabric either using a de-piller, or using a face razor (just pull the fabric tight, and gently slide the razor over the fabric). If you'd like, please contact us and we'd be happy to assist you with a return-for-inspection, and free replacement. We look forward to hearing back from you.

Waist 28 - 30 in / 71 - 76 cm
Waist 32 - 34 in / 81 - 86 cm
Waist 35 - 37 in / 89 - 94 cm
Waist 38 - 42 in / 97 - 106 cm
Waist 42 - 46 in / 106 - 115 cm
Waist - inches 28 - 30 32 - 34 35 - 37 38 - 42 42 - 46
Waist - cm 71 - 76 81 - 86 89 - 94 97 - 106 106 - 115

Click here for more info on our sizing, fits, and fabrics.