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    • Boxer BriefOur best seller · 6" inseam for thicker legs
    • Trunk4" inseam · A shorter leg for thinner legs
    • Boxer Brief Fly6" inseam · Easy-access front fly
    • Boxer Brief Sport8" inseam · Extra length for activity
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    SmoothFit

    • Bikini BriefSeam free · Moderate coverage
    • Full BriefSeam free · Full coverage
    • BoylegSeam free · Longer leg coverage
    • ThongSeam free · Buttery soft
    • Padded BraWireless · Lifts and supports

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    • Body ShortsAnti-chafe panels · Breathable bamboo viscose
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    Limited edition Scorpio Boxer Brief.
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Step One US
  • Socks
  • Limited Editions
  • Clearance

Mens

Shop all

Styles

  • Boxer BriefOur best seller · 6" inseam for thicker legs
  • Trunk4" inseam · A shorter leg for thinner legs
  • Boxer Brief Fly6" inseam · Easy-access front fly
  • Boxer Brief Sport8" inseam · Extra length for activity

Womens

Shop all

SmoothFit

  • Bikini BriefSeam free · Moderate coverage
  • Full BriefSeam free · Full coverage
  • BoylegSeam free · Longer leg coverage
  • ThongSeam free · Buttery soft
  • Padded BraWireless · Lifts and supports

Everyday

  • Body ShortsAnti-chafe panels · Breathable bamboo viscose

Kids

Shop all
  • Junior TrunkAges 6 to 14 · Wicks away sweat

About

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  • Compostable Packaging
  • Ethically Made
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About Us

Step One is a leading direct-to-consumer online retailer for underwear. Step One offers an exclusive range of high quality, organically grown and certified, sustainable, and ethically manufactured underwear that suits a broad range of body types. Step One has transformed the underwear market with an innovative design and cult-like following and has quickly grown into a multinational company operating in Australia, the US and the UK.

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