Carole Martin Wireless Racerback Sport Bra With Low Impact For Yoga Cycling Hiking Fitness Soft Microfiber fabric blend: 82% Nylon /18% Spandex Slip-on/pullover comfort bra - wire free, no hook and eye closures Ultra soft micro fibre, stretch fabric : one size fits B, C, D and even DD cups Wide coverage delivers snug and hug body fit Wide shoulder straps and open U-back help relieve back strain Un-padded wireless bra for ultimate comfort