Zoot Sports Women's Performance Tri Byob Tank Body: 82% Polyester / 18% Spandex, 200gm2/ Inset: 80% Nylon / 20% Spandex, 193gm2/Mesh: 86% Polyester / 14% Spandex, 219gm2 Imported Dropped back hem for enhanced coverage Performance Endura fabric to help you stay dry and comfortable Bring-Your-Own-Bra Dual side pockets for nutrition storage SeamLink stitch construction ensures next-to-skin comfort, minimizes chafing and stretches with fabric