MUSCLE ALIVE Zyzz Gym Tank Tops Men Cotton Size Lightweight, super soft cotton to make this item. Racerback, thin shoulder straps (Approx 1 cm). Deep-neck design, tagless label in neck. Large cut arm holes.(Size Chart see picture or below) SIZE:S=Length 27" Chest&lt;37";M=Length 27.6" Chest38"-43";L=Length 28.3" Chest41"-48",XL=Length 29" Chest43"-49".