FABRIC: 100% Cotton/ Terry Cloth. Back: Waterproof TPU layer. CAL KING SIZE: 72 /182cm W x 84 /213cm L, with elastic deep pocket all round (not just the corners), fits low profile foam and tall mattresses up to 18 /46cm. BREATHABLE COTTON TERRY CLOTH: Made from 100% cotton/terry cloth, this mattress protector cover is breathable and sweat-absorbent. BACK TPU WATERPROOF LAYER: With back coated with TPU waterproof material, this mattress protection cover can effectively protect your mattress from dusts, perspirations, drinks and other liquids. It's perfect choice for infants, kids, the aged, menstruating women and pets lovers. EASY CARE: Machine washable in cold water, gentle cycle, tumble dry low, cool iron if needed.