Columbia Women's Strappy Racerback Bra 88% Nylon, 11% Spandex, 1% Polyester Imported Machine Wash Low support for yoga, trail and wear all day sports bra Seamless, super soft and non-chafing Racerback design allows for full range of motion, maximizing comfortability and compatible with racer back tank top Omni-wick advanced evaporation pulls moisture away from the body and enables perspiration to evaporate quickly, keeping you dry and comfortable Removable cups for enhanced shape and coverage