Sugoi Women's Firewall 220 Tights Front Panels: 92% Nylon, 8% Spandex Face, 100% Polyurethane Laminate, 100% Polyester Back, Back Panels: 88% Polyester, 12% Spandex Imported MidZero back for thermal warmth and stretch 9 inch locking ankle zippers One bonded reflective back pocket for carrying essentials