AVIREX Avirex (Avirex) 783-0937003 (6143503) (618363) Daily Muscle Tank Top TANK TOP (Rib Tank Top) Material: 95% Cotton, 5% Polyurethane Rib: Material with elasticity and a good fit, using the same knitting method as the cuffs, etc. Measurements taken with the item laid flat (ribbed material, so it has elasticity) Actual Size: S: Body width approx. 33cm, Length approx. 61cm M: Body width approx. 38cm, Length approx. 63cm L: Body width approx. 44cm, Length approx. 65cm XL: Body width approx. 49cm, Length approx. 67cm Please understand that there may be slight variations between individual items.