Anti-chafe Ultraglyde panels and sweat-wicking bamboo viscose, in every cut from Brief to Sport.
Black
$33
Purple
$33
Salted Lime
$33
Boxer Brief 4 Pack
$132
Boxer Brief 4 Pack
$132
Boxer Brief
$132
Boxer Brief 7 Pack
$231
Boxer Brief 7 Pack
$231
Boxer Brief 7 Pack
$231
Black
$33
Green
$33
True Maroon
$33
Trunk 4 Pack
$132
Trunk 4 Pack
$132
Trunk 7 Pack
$231
Trunk 7 Pack
$231
Black & Grey
$33
Orange
$33
$33
Boxer Brief Fly 4 Pack
$132
Boxer Brief Fly 4 Pack
$132
Boxer Brief Fly 7 Pack
$231
Boxer Brief Fly 7 Pack
$231
White
$18
Black
$18
Black
$18
Midnight Black
$119
Midnight Black
$55
Midnight Black
$65
Knee-Length, 3/4-Length, Full-Length
$65
Panthers
8″ inseam · Longer for activity
$33
Blue Ocean
New
$30
Black
Extra breathability for sports that get hot
$40
What customers say about Step One.
TrustScore 4.5

Love them or they're free. If you don't love your first pair, we'll give you a full refund.
The only difference between the two is that Boxer Briefs have 3 cm more leg length than the trunks.
It depends on your preference! We have a range of underwear that will suit anyone's body type, shape, and height.
Here's our buying guide:
Boxer Brief - Designed for men with thicker legs
Trunk - Shorter length (4" inseam) - ideal for men with thinner legs
Boxer Brief Fly - Easy access fly, perfect for corporate or formal occasions
Boxer Brief Sport - 8" inseam - extra length for strenuous exercise
Long Johns - Keeps you warm & dry, perfect for colder days and activity
All our underwear is built for movement, but if you’re into sport we recommend the Boxer Brief Sport to prevent ride up for extreme movement, Cloud Mesh for sports that can get hot and need extra breathability and Long Johns for winter.
We are so confident you'll love your first pair of Step One underwear that if you don't, you can keep them and we'll give you a full refund. No questions asked. This applies to your first single pair purchase.