These warm-up booties are perfect for dancers between classes and rehearsals. Ideal for every dancer! The filling is 100% Polyester for warmth and comfort. The heel is cushioned. The shell is 100% Nylon. There's a BLOCH rubber logo badge on the strap. Not recommended for outdoor wear. Sizing: If you plan to wear pointe shoes with these booties, take the next size up from your normal shoe size. XS: US 13.5 - 1.5, S: US 4 - 6, M: US 6 - 8, L: US 8 - 10, XL: US 10 - 12