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Style# 40155

Performance 6" Brief

Average rating of 100%
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. Crafted from 86% polyester / 14% spandex tricot fabric, the 5.11 Performance Brief provides superior support and comfort while remaining flexible and breathable, and an extra wide 1.5 inch elasticized waistband ensures a secure fit when you're on the move. If you need high performance, moisture wicking, quick dry underwear that won't slow you down, the 5.11 Performance Brief delivers.



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



  • Poly/spandex quick-dry fabric
  • Flat locked seams for comfort
  • Tagless label
  • Odor Control technology that inhibits the growth of odor-causing bacteria


Product Reviews

Ratings and Reviews


(based on 1 reviews)

100 %

Best Male Underwear


From Alex


These are the best male underwear. I feel that if I were caught off guard during an emergency wearing these alone, and someone were to say "you're in your underwear," my response would be to look down and then look up at them and say "that's right."

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