This Martex T220 Deep Pocket Sheet, Extra King, 78 x 80″ with 14″ pocket, White, fits mattresses 12 – 16″. It’s produced on sophisticated looms in a world class factory. It is 60% cotton for comfort 40% polyester for durability and its percale/plain weave fabric is designed for long lasting performance. Preshrunk finish for little to no-ironing. Machine wash and dry with less shrinkage.