Smooth, seamless cups combined with supportive underwire provide maximum comfort and constant support while striped jacquard microfiber adds timeless detail. • The Ultimate T-Shirt Bra, no Lines, Disappears Under T-Shirts • Molded Microfiber Underwire Cups • Limited stretch strap for comfort • Leotard back for support and to prevent strap slippage • U.K. sizing bra • Nylon/Spandex