Champion Sport No-Poke Wire Style # 1695 Patented Sport No Poke Wire System (Spring tipped underwire with layered cushion fabric) for comfort - Molded 2-ply layered cups for controlled encapsulation support - Wide back adjustable, cushioned straps help distribute weight and stabilize support - Convertible straps - cushioned back hook & eye closure - Comfort rib band - Tag Free - C Logo power mesh for breathability. Fiber Content: Cup and Frame: 76% Nylon, 24% Spandex; Back Mesh: 82% Nylon, 18% Spandex; Straps: 91% Polyester, 9% Spandex; Back Lining: 86% Nylon, 14% Spandex