Sizing Chart

our products run small, please order up one size ☝️

THICKER Legs? Then go for the BOXER BRIEFS
THIN Legs? Then TRUNKS are for you

Our 30-Day First Pair Guarantee means you can try 1 pair for up to 30 days and if it's the wrong size, then we'll send out a different size, for FREE. Yeah.. Free 💪
Note: If the replacement pair is still not a good fit, we can no longer process a refund or send another replacement pair. I'm sure you'd understand! 
SIZE WAIST (in)
2XS / (Size 4/8) 21-22in
XS / (Size 8/12) 24-26in
Small 28-30in
Medium 30-32in
Large 33-35in
Extra Large 36-40in
2XL 43-45in
3XL  47-49in
4XL 50-52in
5XL 54-56in
6XL 57-59in

Free shipping

Step One offers free standard shipping on all orders!

Customer service

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

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.

Easy Returns

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