Stay cool, dry and comfortable while running, train or workout even in the hottest environments with the X31 Sports Performance Trunk Boxer Brief. Specially designed for men, mesh support pouch jock area and inner leg thi...

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Stay cool, dry and comfortable while running, train or workout even in the hottest environments with the X31 Sports Performance Trunk Boxer Brief. Specially designed for men, mesh support pouch jock area and inner leg thigh panels for super breathability, reduced chaffing to help keep you irritation free in your bulge area, even in the hot temperatures. Powerful moisture wicking antimicrobial microfiber fabric with light compression tech, helps control and remove sweat from your body quick to keep skin dry. Made from 4-way stretch fabric for greater range of active sport motion, flexibility and mobility. A soft durable thick performance brief waistband for superior comfort and fit keeps your trunks in place from riding too low or ride up. Functional fly open when you need it. You'll wonder how you worked out in anything else!


Sizing Information :

Small Waist (in) 26-28

Medium Waist (in) 30-32

Large Waist (in) 34-36

X-Large Waist (in) 36-40



  • YOUR "MAN PARTS" WILL BE HAPPIER - Larger mesh front pouch and working fly make these Athletic Underwear a must-have for all guys. Whether you are running, camping playing sports, on long travel or just looking for a more fashion conscious pair of performance boxers beyond your normal tighty whities, this is the underwear for you.
  • KEEP YOUR JUNK COOL AND DRY - Warmth and moisture inside a Man's crotch area is a recipe for discomfort and disaster. It's also an easy way to get "jock itch". That's why we constructed these Boxer Briefs with ventilated mesh in the groin and inner thigh panels for improved breathability to keep your nether regions cool, dry and comfortable.
  • HELPS REDUCE CHAFING - Runners, Cyclists, Crossfit Athletes alike, know the pain that inner thigh chafing can cause (aka chub rub). That's why in addition to the vented mesh inner-thigh leg panels all stitches, seams and panel locations were intentionally designed to reduce the friction during long workouts.
  • SAY GOODBYE TO SWAMP BUTT - Constructed from a lightweight Polyester and Spandex blended fabric, specifically chosen for its breathable and moisture wicking properties. Superior to cotton and nylon in cooling. New Tagless label design to reduce itching, and a soft but strong jacquard waistband for improved comfort and reduce the need to constantly pulling up your shorts. While it may not totally reduce "plumbers butt", we've taken a "crack" at it.
  • LIFETIME MONEY BACK GUARANTEE - We stand behind the quality of our Underwear on Amazon. No need to worry about getting an unsatisfying pair of Boxers. We promise to return your money if you are not happy.
  • YOUR "MAN PARTS" WILL BE HAPPIER - Larger mesh front pouch and working fly make these Athletic Underwear a must-have for all guys. Whether you are running, camping playing sports, on long travel or just looking for a more fashion conscious pair of performance boxers beyond your normal tighty whities, this is the underwear for you.
  • KEEP YOUR JUNK COOL AND DRY - Warmth and moisture inside a Man's crotch area is a recipe for discomfort and disaster. It's also an easy way to get "jock itch". That's why we constructed these Boxer Briefs with ventilated mesh in the groin and inner thigh panels for improved breathability to keep your nether regions cool, dry and comfortable.
  • HELPS REDUCE CHAFING - Runners, Cyclists, Crossfit Athletes alike, know the pain that inner thigh chafing can cause (aka chub rub). That's why in addition to the vented mesh inner-thigh leg panels all stitches, seams and panel locations were intentionally designed to reduce the friction during long workouts.
  • SAY GOODBYE TO SWAMP BUTT - Constructed from a lightweight Polyester and Spandex blended fabric, specifically chosen for its breathable and moisture wicking properties. Superior to cotton and nylon in cooling. New Tagless label design to reduce itching, and a soft but strong jacquard waistband for improved comfort and reduce the need to constantly pulling up your shorts. While it may not totally reduce "plumbers butt", we've taken a "crack" at it.
  • LIFETIME MONEY BACK GUARANTEE - We stand behind the quality of our Underwear on Amazon. No need to worry about getting an unsatisfying pair of Boxers. We promise to return your money if you are not happy.

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