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Not the perfect fit? Not for you? NO PROBLEM. Always free exchange or full refund on your first pair.

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Customers rate us / 5.0 based on 1840+ reviews

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  • Money back guarantee

    Love our products, or get your money back on your first pair.
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Why crossfly underwear?

  • Our Story

    Hear from the founder Duncan on why Crossfly is comfortably the best.

    • Game changing technology
    • All-day comfort, morning to night
    • Built for both rest and tough workouts

  • Chafe-free Comfort

    Introducing our COCCOONâ„¢ pouch:

    • Prevents skin-on-skin contact
    • Boosts airflow
    • Gives you a gentle lift
    • Stay cool, comfortable, and supported all day long

  • Luxuriously soft

    Made with Sustainable & Butter Soft Modal.

    • Unmatched comfort
    • Highly breathable
    • Natural Odor Resistance
    • Long-lasting modal blend

  • Tired of fumbling?

    Our X-FLYâ„¢ technology is the solution.

    • Fast and easy access from the top
    • A design that makes sense
    • Designed to hide drips & mishaps
    • Ideal for any adventure

  • zerofold360 waistband

    A waistband that moves with you.

    • 4-Way stretch
    • Brushed finish on the inside for next-to-skin comfort
    • Perfect for active lifestyles

  • Money back guarantee

    Love our products, or get your money back on your first pair.
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  • 6" Boxers

    24H COMFORT & CLEVER ACCESS Our game-changing Crossfly men's underwear Everyday Series... 

    6" Boxers

    Longer + Fly

    Popular

  • 3" Trunks

    24H COMFORT & CLEVER ACCESS The IKON 3" trunk is the ultimate premium... 

    3" Trunks

    Shorter + Fly

    Low rise

  • 7" Pro Boxers

    ULTIMATE PERFORMANCE & CLEVER ACCESS Crossfly Pro 7 Inch is built to... 

    7" Pro Boxers

    Sports + Fly

    Semi-compression
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Customers rate us / 5.0 based on 1840+ reviews

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