< Underwear

Flex Trunks
Flex Trunks

Flex Trunks

$32

Flex
Trunks
Boxer Briefs

Solid Colors:

Navy

Gronk Colors:

Size:

1

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    Our Flex Trunks have been completely upgraded. Built for performance, they feature a custom flex-knit fabric blend that provides full support, breathability, and cool-touch mesh for optimal temperature control.

Complete the look.

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Customer Reviews

Don't just take it from us.

4.9
Rated 4.9 out of 5 stars
Based on 91 reviews
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91 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    Comfortable

    Very comfortable

    David F.
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    Yesterday
    Flex Trunks

    I like the way these underwear fit and look. They are a bit warm to wear. This is good in winter but may be too warm for summer.

    Dale W.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    Perfect Fit

    Great fit - And they don't roll up the thigh!

    Michael A. B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Can’t Beat Em

    Hands down my favorite underwear. Bundle and save makes the price a bit better. Would love to see them as a free gift for purchases over $175 instead of some random wet dry bag that I have 5 of now. Easy 5/5 product.

    Meleji M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Love the fit

    Very comfortable all day

    Greg W.
    Verified Buyer
    Was this helpful?
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