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Collection: Underwear & Boxer Shorts

The most comfortable underwear and boxer shorts you will ever wear! The innovative material used to create each product is a specialized polyester blend that mimics the temperature of your body. It is light-weight, breathable, and provides all-day comfort while wearing.

117 products
  • Snoopy Joe Cool Boxer Shorts
    BRIEF INSANITY Snoopy Joe Cool Boxer Shorts
    Regular price
    $ 21.00
    Sale price
    $ 21.00
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  • Sesame Street Cookie Monster Boxer Shorts
    BRIEF INSANITY Sesame Street Cookie Monster Boxer Shorts
    Regular price
    $ 18.00
    Sale price
    $ 18.00
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    $ 21.00
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  • American Flag Boxer Shorts
    BRIEF INSANITY American Flag Boxer Shorts
    Regular price
    $ 20.00
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    $ 20.00
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  • Snoopy Lazy Days Boxer Shorts
    BRIEF INSANITY Snoopy Lazy Days Boxer Shorts
    Regular price
    $ 21.00
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    $ 21.00
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  • Ruff Day? Dog Boxer Shorts
    BRIEF INSANITY Ruff Day? Dog Boxer Shorts
    Regular price
    $ 20.00
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    $ 20.00
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  • Bourbons of Kentucky Boxer Shorts
    BRIEF INSANITY Bourbons of Kentucky Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • Don't Tread On Me Boxer Shorts
    BRIEF INSANITY Don't Tread On Me Boxer Shorts
    Regular price
    $ 20.00
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    $ 20.00
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  • Let's Get Wild Bear Boxer Shorts
    BRIEF INSANITY Let's Get Wild Bear Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • Rainbow Tie-Dye Boxer Shorts
    BRIEF INSANITY Rainbow Tie-Dye Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • Sesame Street Oscar The Grouch Boxer Shorts
    BRIEF INSANITY Sesame Street Oscar The Grouch Boxer Shorts
    Regular price
    $ 18.00
    Sale price
    $ 18.00
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    $ 21.00
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  • Shark "Bite Me" Boxer Shorts
    BRIEF INSANITY Shark
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • We The People Boxer Shorts
    BRIEF INSANITY We The People Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • I'm So Old I Lost My Nuts Boxer Shorts
    BRIEF INSANITY I'm So Old I Lost My Nuts Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • Muscle Cars Boxer Shorts
    BRIEF INSANITY Muscle Cars Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • Beer for Breakfast Boxer Shorts
    BRIEF INSANITY Beer for Breakfast Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • Old Fart Dog Boxer Shorts
    BRIEF INSANITY Old Fart Dog Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • Woody Surf Boxer Shorts
    BRIEF INSANITY Woody Surf Boxer Shorts
    Regular price
    $ 15.00
    Sale price
    $ 15.00
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    $ 20.00
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  • Trophy Husband Green Plaid Boxer Shorts
    BRIEF INSANITY Trophy Husband Green Plaid Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • Don't Be A Prick Boxer Shorts
    BRIEF INSANITY Don't Be A Prick Boxer Shorts
    Regular price
    $ 20.00
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    $ 20.00
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  • Freedom Boxer Shorts
    BRIEF INSANITY Freedom Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • You Had Me At Meow Boxer Shorts
    BRIEF INSANITY You Had Me At Meow Boxer Shorts
    Regular price
    $ 20.00
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    $ 20.00
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  • Elephant Size Matters Boxer Shorts
    BRIEF INSANITY Elephant Size Matters Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • Yes Deer Camo Boxer Shorts
    BRIEF INSANITY Yes Deer Camo Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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  • Abbey Road Boxer Shorts
    BRIEF INSANITY Abbey Road Boxer Shorts
    Regular price
    $ 20.00
    Sale price
    $ 20.00
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