Columbia Women's All Way Stretch Micro Mesh Hipster 2 Pack 85% Nylon, 15% Spandex Imported Machine Wash Mesh fabric is super lightweight and breathable. 2 pack color combo All way stretch for the perfect fit. Full range of motion Hipster has full back coverage Omni-wick advanced evaporation pulls moisture away from the body and enables perspiration to evaporate quickly, keeping you dry and comfortable Athletic fit, so comfortable you won't know you have anything on