THE SWEAT
Relaxed fit for recovery and everyday wear.
RELAXED FIT
SIZE GUIDE
Performance starts with the right fit. Use our size guide to find the ideal Bilson size for every move you make.
HOW TO MEASURE
Use a soft tape measure and follow the guides below. Stand relaxed, keep the tape level, and record each measurement for your most accurate fit.




SIZE CHART
Compare your body measurements against our chart below. Switch between men’s and women’s sizing to see the full range for each.
| SIZE | CHEST (IN) | WAIST (IN) |
|---|---|---|
| XS | 34 – 36 | 28 – 30 |
| S | 36 – 38 | 30 – 32 |
| M | 38 – 40 | 32 – 34 |
| L | 40 – 42 | 34 – 36 |
| XL | 42 – 45 | 36 – 39 |
| XXL | 45 – 48 | 39 – 42 |
| 3XL | 48 – 51 | 42 – 45 |
All measurements are body measurements in inches.
If you’re between sizes, we recommend sizing up for a more comfortable fit.
FIT GUIDE
Every collection is engineered with a purpose. Here’s how each fit feels.
Relaxed fit for recovery and everyday wear.
RELAXED FITRegular fit. Comfortable and versatile.
REGULAR FITAthletic fit for training and daily performance.
ATHLETIC FITStreamlined fit for high-intensity movement.
ATHLETIC FITSlim athletic fit optimized for endurance.
SLIM FITSecond-skin fit engineered for support.
COMPRESSION FITOur team is here to help you find the perfect fit.
Need help? Contact our fit experts.
CONTACT USHassle-free size exchanges.
Talk to our fit experts anytime.
Personalized size recommendations.
Quick shipping and delivery.