Thoughtfully designed from concept to production, this boxer brief is our take on a modern, upgraded base layer. We've paired performance materials and purposeful design to solve the everyday frustrations presented by traditional underwear. Move through your day in boxer briefs that were designed to move with you.

Our Athletic Fit Boxer Briefs fit true to size in the waist and have the same comfort enhancing features, performance fabric and waist size as our Standard Fit Boxer Briefs. The difference between the two product lines is the Athletic Fit features larger leg openings to accommodate guys with larger thighs - for instance, a medium size Athletic Fit boxer brief will fit guys with a 23" or more thigh circumference measuring 12" down from the waistline (the area where a waistband normally sits on your hips) - see our Fit Guide for the thigh circumference fit guide for all sizes.

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    • Signature Breathe Zones to regulate airflow and ventilation
    • Grip elastic on the thighs to keep the legs from riding up
    • Quick-access fly allows for a fast and more natural movement when nature calls
    • Supremely soft microfiber that is breathable and featherlight
    • Anti-odor to keep you and your gym bag fresh
    • Moisture-wicking to manage sweat during any level of activity
    • Quick-drying allows you to pack light and do laundry anywhere (hang to dry in just a few hours)
    • Blended with spandex for 360° stretch and ease of movement
    • 6.5" inseam
    • Thick, no roll waistband stays put on your waist
    • Understated waistband with a white and textured stripe layered on top of a classic black
    • The waistband elastic has just the right amount of stretch and resistance to grip your waist without leaving marks on your skin
    • Contoured double-layered pouch conforms naturally to the shape of your goods, provides a spacious fit and reduces the need to "re-adjust"
    • Major stress-points are reinforced with bar tack stitches to make sure our products last
    • Mobility gusset allows for a greater range of motion and unrestricted movement
    • Durable seams that lay flat on your skin to minimize chafing
    • Easy care - machine wash cold and hang to dry - that's it
    • Microfiber and Mesh: 90% Polyester, 10% Spandex
    • Model is 5'11" ◦ 31" waist ◦ wearing a medium
    • Fit guide


    All of our garments are easy care:

    • Machine wash cold and hang to dry - that's it (this fabric is quick-drying)
    • Do not dry clean
    • Do not bleach
    • No ironing necessary, but if desired, dampen the fabric and use a steamer or set the iron to very low heat
    Customer Reviews
    4.8 Based on 32 Reviews
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    A All Citizens Customer
    Joel B.
    United States United States
    I recommend this product
    Comfortable material, supportive. Good tightness

    Good product. I'm very happy with these, all in all. I like tight fit on the legs, but even with the athletic fit the thighs are slightly tight on the first wear. My thighs are around 22-23" for reference. I haven't had these long enough to say how these will wear over time, but the quality seems solid and I expect the fit will stay consistent. Bottom line: very pleased and will be ordering more.

    Jonathan W.
    United States United States
    I recommend this product
    Great fit

    No wedgies or ride-ups. Great for a long day of walking

    BINH T.
    United States United States
    I recommend this product
    Amazing Fit

    As someone blursed (blessed/cursed) with big thighs, these boxers are a godsend. The fit is great and ventilated, and the price can't be beat. I would highly recommend this for everyone!

    Brian M.
    United States United States
    I recommend this product
    Everything great about standard + looser leg

    This is exactly what I was looking for. I bought the Standard Fit prior to buying these. The Standard Fit elastic band was way too tight for me and ended up hurting after wearing them all day. I have 20" legs, which fit into the recommendation. The Athletic Fit has everything great about the Standard Fit, but with the leg elastic band waaaaay more forgiving/thinner/less tight. Even for 20" legs like mine, I would recommend these for those that want a more forgiving fit around the thigh.

    Kevin B.
    United States United States
    I recommend this product
    Very Comfortable!

    Great quality, great fit, super comfortable!