Zoot Sports Women's Performance Tri Bra Body: 200 g. 80% nylon/20% xtra life lycra spandex Endura Inset: 219 g. 86% polyester/14% spandex Ventilator Mesh Lining: 180 g. 81% nylon/19% spandex Power Mesh Imported Reflective details UPF 50+ sun protection SeamLink--soft flexible stich