Size: 2XS, Size: XS, Size: S, Size: M, Size: L, Size: XL - American Apparel Ladies' Rib Boy Beater Tank. 5.8 oz. 100% ringspun combed cotton. 2x1 rib. Form-fitting. Sideseamed. Will shrink an average of one size when put in the dryer. Heather Grey is 90% ringspun combed cotton, 10% polyester.