Sugoi Women's RPM Skirt Body 84% Polyester, 16% Spandex / Waistband 88% Nylon, 12% Spandex / Bike Liner 84% Polyester, 16% Spandex Imported 4 inch liner; 15 inch skirt Comfort waistband detailing for excellent fit and ride performance Side cut and overlapped for full coverage when in the ride position Zippered rear pocket for storing keys and ID