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The men's REI Co-op Boxer Briefs are an essential item in your outdoor kit with lightweight, comfortable 4-way stretch fabric that wicks moisture and absorbs odors thanks to a Lava XL™ finish.

  • Features

    • Soft fabric blend of polyester and spandex breathes well, moves moisture away from skin and dries quickly
    • Flatseam construction prevents chafing
    • Soft, signature REI Co-op waistband with a brushed inner face fits comfortably
    • Men's REI Co-op boxers briefs have a classic fit and a functional fly

    Imported.

    View all REI Co-op Men's Boxers
  • Technical Specs

    Best Use

    Hiking

    Underwear Style

    Boxer Brief

    Fabric

    87% polyester/13% spandex (bluesign® approved)

    Moisture Wicking

    Yes

    Quick Drying

    Yes

    Inseam (in.)

    4.75 inches

    Gender

    Men's

    Sustainability

    Contains materials that meet the bluesign® criteria

    Fly Opening

    Yes

  • Size Chart

    XS S M L XL XXL XXXL 28 IN Waist 30 IN Waist 32 IN Waist 34 IN Waist 36 IN Waist 38 IN Waist 40 IN Waist 42 IN Waist 44 IN Waist 46 IN Waist
    Chest 35 36 - 38 39 - 41 42 - 45 46 - 49 50 - 53 54 - 57
    Sleeve Length 33 33.5 34 34.5 35 35.75 36.5
    Waist 27.5 28 - 30 32 - 34 36 - 38 40 - 42 44 - 46 48 - 50 28 30 32 34 36 38 40 42 44 46
    Hip 33.5 34.5 - 36.5 37.5 - 39.5 41 - 43 44 - 46.5 47.5 - 50.5 51.5 - 54.5 34.5 36.5 37.5 39.5 41 42 44 46.5 47.5 50.5
    Inseam 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32

    Sizing Notes

    Measurements are stated in inches unless otherwise indicated.

    SHORT: Some pants are available in short sizes, which generally means an inseam that is 2.5 inches shorter than regular sizes.

    TALL: Some pants, shirts, jackets and parkas are available in tall sizes, which generally means an inseam that is 3 inches longer and a rise that is 1 inch longer, a shirt or jacket body that is 2 inches longer, a parka body that is 2.5 inches longer and sleeves that are 2.5 inches longer than regular sizes.

    Capri or cropped pants have an intentionally shorter inseam—reference the technical specs instead of this chart.

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