THIS 4.2 OZ. RELAXED FIT TANK TOP FEATURES A TEAR-AWAY LABEL, LOW-CUT ARMHOLES, AND IS SIDE SEAMED. IT IS MADE OF 100% AIRLUME COMBED AND RING SPUN COTTON, 32 SINGLES. ATHLETIC HEATHER IS 4.2 OZ. AND IS MADE OF 90/10% AIRLUME COMBED AND RING SPUN COTTON/POLYESTER, 32 SINGLES. DARK GREY HEATHER IS 4.2 OZ. AND IS MADE OF 52/48% AIRLUME COMBED AND RING SPUN COTTON/POLYESTER, 32 SINGLES.