2015 Ski Guide2015 Ski Guide


Yeah we actually said breathable crotch panel.

Hustling around the outdoors shouldn’t get your jockeys in a bunch, so Under Armour created the Men’s 0 Series Boxer with four-way stretch and a breathable mesh crotch panel to avoid that hot-and-bothered feeling. Moisture-wicking HeatGear fabric offers ample control over your sweaty tendencies and keeps the family jewels supported by an articulated crotch that minimizes chafing. Even if you send it hard, Armour Block technology resists sweaty odors so your drawers will (hopefully) smell fresher than a box of spring-scented dryer sheets.
  • A 3-inch inseam offers a closer fit and plenty of flexibility if you wear shorter shorts during sports

Share your thoughts

Review Summary
7 4
4 3
1 2
0 1

What do you think of the

Under Armour O Series Boxer - Men's - 3in

? Share a...

Write a review

No file chosen

Rather attach a photo from another website?

Rather attach a photo from your computer?

  • Product review:
  • Share a video
  • Share a photo

How familiar are you with the product?(Optional)

How does this product fit?(Optional)

Only jpg, jpeg, png, gif or bmp files please.


Here's what others have to say...

5 5


  • Gender: Male
  • Familiarity: I've put it through the wringer

I was super skeptical at buying another pair of boxer briefs because I am a bigger guy. With my thighs being so huge, normally the band around my thighs pulls the underwear down and my whole ass hangs out.

That is not the case with these. The material is super stretchy and comfortable. The waist band is super sturdy; none of the fruit of the loominess there. You put these bad boys on and your junk is totally secure. I ordered these in all the lengths and love them all!

I highly recommend these for my thicker thigh brothers out there! You will be presently Amazed by these!

I saved everyone the pain of posting a pic of me in these undies and posted their quote on the box: "You'll never wear normal underwear again!"

It is true! You will never want another pair!
I am ordering 5 more pairs right after this review!

5 5

Start at the core

  • Gender: Male
  • Familiarity: I've used it several times

This is the first layer I put on and last I take off when I ski or bike. I love them since they breath really well and keep excess moisture away from my skin. I recommend these to anyone that does aerobic intensive activities.

* Tweak This

5 5

Start at the core

  • Gender: Male
  • Familiarity: I've used it several times

This is the first layer I put on and last I take off when I ski or bike. I love them since they breath really well and keep excess moisture away from my skin. I recommend these to anyone that does aerobic intensive activities.

5 5

Under Armour O Series Boxers are the shizz

These are the best undies you can find, hands down. They last forever, don't tear, keep everything cool and dry even in the most demanding situations, and they double as highly powerful intimate wear.

3 5

Not a Huge Fan

They breathe well, but as others have mentioned, the legs immediately move up and so you might as well be wearing regular undies. This becomes annoying while skiing or hiking, and forces you to go down and adjust.

4 5

Good stuff!

These are great! As far as comfort, support, and breathability go they have exceeded my expectations. Keep in mind though that the legs do not stay down as pictured. They instantly move up and turn your boxer briefs into just briefs. As a result they are less "walk around in just underwear" friendly. I would like to see these have slightly longer legs, but not as long as the 6 in version.

I have the O Series 6 in., and it tends...

Posted on

I have the O Series 6 in., and it tends to ride up a bit. How does this compare?

Responded on

All boxer briefs tend to ride up a bit. The lower hem is always going to slide upwards where the leg is a little more narrow.

Responded on

Yes, but does the 3 in. version ride up just as much as the 6 in. one? I presume that it is less, but I'm not sure.

Responded on

I have both the 6 and the 3. The 3 inch do not ride up nearly as much as the 6 inch. But keep in mind that these 3 inch ones are very short and are essentially briefs since the little legs come up to crotch level in no time.

5 5

Comfortable but short

I gave these a try and they were comfortable but I have been wearing the 6" version for so long I just could not get used to these. They offer fantastic support and help keep you cool.

UA does a great job with their briefs and although they are expensive they will last a very long time. I have had a few pairs that are tighter than all my others. If in doubt I would size up.

5 5

Nice support

These underwear are great. I primarily wear them for running. They don't ride up or bunch and they are very comfortable. Also, they provide nice support. I strongly suggest them.

4 5

under armour boxers

great fit , they keep me warm and dry.

5 5

Protect your boys...

I will never wear anything else when I'm out hiking, wether it be in the summer or winter... These things rock! Supportive, awesome fit and you stay dry... The fit is right on.. I wear 32 pants and the mediums fit great! The only down fall is the are a tad expensive, but they are worth every penny!

4 5

Good Boxer briefs

They are indeed form fitting. I did find them comfortable, and I found they did fit true to size. I am a 30-32 and the Medium fit me exactly how I was hoping they would (I guess if you don't like them as form fitting, maybe a size up would work out.)

They provided great support compared to other boxer briefs that I have tried. The support is sufficient for high activity levels, and everything is kept in place well

I didn't really notice any difference with the Armour Block Tech vs briefs without any odor block, hence the removal of 1 star. Although as consolation they do dry very quickly after washing.

Overall, I enjoy them.

4 5

Under Armour O Series Boxer 3in

- It's basically the boxer jock which is more of a brief!- Be careful as the size is Form fitting!- This means that skinny people order their true size while "average" males order 1 size UP (i.e. size 36 is large but you better order size XL)!- It fits comfortable mostly when it fits correctly and you don't feel it.- It's relatively EXPENSIVE considering that other makers' Cotton versions sell for at least HALF the price!- Remember: boxer shorts do NOT provide support during strenuous conditions like running! Briefs (i.e. boxer briefs) DO!- Some people online already complain that the longer versions DO have the lengths run up!