Men's Underwear - Trunk

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Buy Underwear Online at Step One | The best anti-chafe underwear

Trunk - Black Currants

$28.50

Trunk - Ahoy Sailor

$28.50

Trunk - Smoking Gun

$28.50

Trunk - Scorpians

$28.50

Trunk - Juicy Plums

$28.50

Trunk - Smashed Avo

$28.50

Trunk - Ice Cubes

$28.50

Trunk - Butter Nuts

$28.50

Trunk - Twin Boosters

$28.50

Trunk - Yankee Doodles

$28.50

Trunk - Snow Worries

$28.50

Trunk - Cherry Cheeks

$28.50

Trunk - U-Up?

$28.50

Buy Mens Underwear Online at Step One US

Trunk - Jungle Bitz

$28.50

Trunk - Snowballs

$28.50

Trunk - Skid Marks

$28.50

Trunk - Cowabungas

$28.50

Trunk - Bubble O' Balls

$28.50

Trunk - Ken Ell

$28.50

Trunk - Tin Cans

$28.50

Trunk - Butt Quacks

$28.50

Trunk - Jail Brakes

$28.50

Limited Edition

Trunk - Biznass

$28.50

Trunk - Egg Yolks

$28.50

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.

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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

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