Neleus Women's Racerback Yoga Workout Tank Top It do't have a bra insert; 85% Polyester / 15% spandex, Machine Washable Racerback style with bound edges and flatlock seams Lightweight provides comfortable feeling against skin Moisture Transport System sweeps away sweat and dries quickly,so keep you dry and comfortable Flat lock seams to prevent chafing Suitable for all sports indoors and outdoors,such like:running,yoga,cross training and etc