Sugoi Women's RSR Tank Body 81% Nylon, 19% Spandex / Inner bra mesh liner, side splice at underarm, center back contrast mesh 64% Nylon, 36% Spandex Imported Soft Power Mesh attached bra with supportive stretch and breathability Ultra Aero fabric with mesh rear paneling provides high support and ventilation Supportive racer back styling for a performance aesthetic Rear pocket construction designed to store your run essentials