BSensible Kids Twin/ Full Size 2 in 1 Breathable Waterproof Fitted Sheet + Mattress Protector x1 (Full, Green) Made from Tencel, a soft, breathable, and 100% natural textile Imported Waterproof 2 in 1 fitted sheet and mattress protector. Made from Tencel, a soft, breathable, and 100% natural textile. Fabric designed for year-round comfort: warm in winter, cool in summer. Hypoallergenic, recommended for sensitive skin. Anti-bacterial with zinc oxide in a patented process with skin regenerative benefits. Fabric is odor-reducing for freshening effect. Dust mite proof. Available sizes fit standard twin (38 x 75 x 9-12 in) or full size (54 x 75x 9-12 in) mattresses. Extendable skirt that accommodates up to 12 mattress thickness. Machine washable and tumble dry. Conforms to Oeko-Tex and strict EU Standards.