The ReGen Tee is made with a loose-knit organic cotton fabric that provides a loose, stretchy feel. When compared to our Unisex Tee, it is a bit longer and slightly wider as well. -- Unisex Sizing Fair Trade Certified 100% Regenerative Organic Cotton Regenerative Organic Alliance Certified Loose-Knit Fabric Looking for custom merchandise? Check out our SUPPLY HOUSE . XS S M L XL 2XL 3XL 4XL Chest 19" 20" 21" 22" 23" 24 1/2" 26" 27 1/2" Length 28 1/8" 28 3/4" 29 3/8" 30" 30 3/4" 31 1/2" 32 1/4" 33" Sleeve Length 7" 7 1/2" 8" 8 1/2" 9" 9 1/2" 10" 10 1/2"