60% Cotton, 40% Polyester; Next Level Apparel sizing. If you like your t-shirts fitted, then they're true to size, if you like your t-shirts to fit a little looser, we recommend sizing up.

XS S M L XL  XXL
33"-35" 35" - 38" 38" - 41" 43" - 44" 45" - 48" 48" - 52"