Warm-up booties for ladies and men designed by Bloch Stars and American Ballet Theater Principal Dancers Irina Dvorovenko and Max Beloserkovsky. Features 100% Polyester filling offer exceptional warmth and extreme comfort Cushioned heel 100% Nylon Shell Fabric 100% Polyester filling100% Nylon Shell Sizing Information & Suggestions S: US 4-6 M: US 6-8 L: US 8-10