4.4 oz, 88% polyester, 12% elastane wicking knit with Coolcore technology; 92% polyester knitted mesh, 8% elastane wicking knit inserts with Coolcore technology; Coolcore is engineered to distribute moisture quickly throughout the garment. As the moisture spreads it dries faster and keeps you cool and comfortable; Four-way stretch properties allow for increased mobility; Scoop neckline and racerback styling; Dropped tail hem and side vents; Tag-free label