Cuddl Duds Women's Winter Fleece lined layering set US Size chart: S = 6-8, M= 10-12, L=14-16, XL=18-20 94% polyester and 6% spandex. Set contains a long sleeve fleece lined top, with thumb holes and a legging pant. Contour thumbholes for easy layering. Leggings are designed to fit below waistline for a flat modern fit.