Men's Bamboo Viscose Underwear
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Everyday Comfort

Classic Styles & our best sellers

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  • [EXP-A] Men's Bamboo Underwear Boxers in all black - Model:Skyler
    Classic Black
    Boxer Brief
    Scorpions
    Classic black, 6 inch in-seam, anti-chafe panels, style for days.
  • Boxer Brief - Ahoy Sailor - Bamboo Underwear
    COLORS
    Boxer Brief
    Ahoy Sailor
    Same comfort, more colours, 6 inch in-seam, suits thicker legs.
  • [EXP-A] Trunk - Black Currants - Bamboo Underwear - Model:Vince
    SHORTER LEGS
    Trunk
    Black Currants
    Classic colours, shorter legs, 4 inch in-seam, suits thinner legs.
  • [EXP-A] Boxer Brief Fly - Snowballs - Bamboo Underwear - Model:Mitch
    FRONT FLY
    Boxer Brief Fly
    Snowballs
    Classic boxer briefs with a front fly for easy access. 6" in-seam.
  • Boxer Brief - Euro Streakers - Bamboo Underwear
    LImITED EDITIONS
    Boxer Brief
    Cup Fever
    Limited edition prints and colors to spice up your day.
  • Junior Trunk - Juicy Plums - Bamboo Underwear
    KIDS SIZES
    Junior Trunk
    Juicy Plums
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Which Step One Underwear should you choose?

[EXP-A] Trunk - Black Currants - Bamboo Underwear - Model:Vince
Trunk
  • 4" in-seam
  • Anti-chafe Ultraglyde panes
  • Sweat wicking bamboo viscose fabric
  • Suits Thinner Legs
  • Good for shorter guys
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[EXP-A] Black Underwear with Fly at Step One - Model:Angus
Boxer Brief Fly
  • 6" in-seam
  • Anti-chafe Ultraglyde panes
  • Sweat wicking bamboo viscose fabric
  • Easy access front fly
  • 3D comfort pouch
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Our Best Selling Style
[EXP-A] Men's Bamboo Underwear Boxers in black and grey - Model:Skyler
Boxer Brief
  • 6" in-seam
  • Anti-chafe Ultraglyde panes
  • Sweat wicking bamboo viscose fabric
  • Suits thicker legs
  • 3D comfort pouch
Shop Boxer Brief
Boxer Brief Sport - Panthers - Bamboo Underwear - Model:Baba
Boxer Brief Sport
  • 8" in-seam
  • Anti-chafe Ultraglyde panes
  • Sweat wicking bamboo viscose fabric
  • Longer for activity
  • 3D Comfort Pouch
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Why Step One Underwear?

First Pair Guarantee

We are so confident you'll love your Step Ones, we'll give you a full refund on your first opened and worn pair if you don't like them for any reason.

Free shipping on all orders!

Free shipping on all orders in the US... how good!

Easy Returns

Picked the wrong size by mistake? No problem. On top of our first pair guarantee we also offer returns/exchanges on all unopened products.

Customer Service

Buy with confidence, our dedicated customer service team is available 24/7 to answer any questions you have!