Our Flex Trunk Underwear style has been completely upgraded! Designed to be performance ready, the custom flex-knit fabric blend offers complete support, breathability and cool touch mesh for optimal temperature control.
Learn MoreFlex Trunks Size Guide
Our Flex Trunk Underwear style has been completely upgraded! Designed to be performance ready, the custom flex-knit fabric blend offers complete support, breathability and cool touch mesh for optimal temperature control.
Now in all around enhanced fabric, experience improved support with improved breathability and ultimate flex-fit comfort.
My new favorite underwear. Best I’ve tried so far. Recommend. I
Good Feeling underwear !!👍
The way these trunks cradle my nuts. Gives me a whole new look at quality of trunks I'm wearing. Totally worth every penny. Definitely would recommend
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