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Style# 40156

Performance 9" Brief

Average rating of 93%
View Size & Fit Chart

Purpose Built

Flexible, confident, and designed for all day comfort, the 5.11® Performance Brief offers enhanced moisture wicking and odor control characteristics that keep you dry and focused during periods of high exertion.

Features and Benefits

  • Confident fit, flexible design
  • Moisture wicking
  • Extra-wide 1.5 inch waistband


  • Poly/spandex quick-dry fabric
  • Flat locked seams for comfort
  • Tagless label
  • Imported
Product Reviews

Ratings and Reviews

 4.7 average rating

(based on 3 reviews)

93 %

great boxer with cooling and compression support!

 Rated 4.0 stars



First I would like to say that these shorts or boxers are the best deal out there the, other guy's "ua," say they make this short but they really do not! These work great for cooling as well as giving you the "support," that a guy needs when he never knows for sure what is going to be his next challenge or event to deal with day to day. The other amazing feature about these is that they have a true and working fly, for us that know how to use it. Like the big boys do! I would give you a five star rating for them but because you are still holding my left arm hostage for the cost of these, I am having to wait a while to purchase a couple of other pairs! Come on 5.11 help a guy out on the pricing. I know you can because you have the only true compression base layer short on the market, and profit hoarding is not all your company is about. NO ONE ELSE offer's this compression with fly short in this material! You're the only game in town!! )) KEEP UP DEVELOPING THE PRODUCT OTHERS HAVE FORGOT ABOUT OR NO LONGER CHOOSE TO SELL IN THE USA !! Thanks TJ

very comfortable

 Rated 5.0 stars

From Albert


It's so comfortable and flexible. You won't find any better underwear.

Awesome feel and comfort

 Rated 5.0 stars

From Sam


I always want to feel that I'm "ready" for what ever comes and these briefs help me do that. They have an awesome feel and comfort, and have held up to some serious use. In fact I'm reordering today so I can wear these all the time.

3 Item(s)

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