This Martex Limited T250 Fitted Sheet in size King is measuring 78" x 80" with 14-inch-deep pocket 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. Replaces 1125440