2 inch 4LB Memory Foam Pillowtop Mattress Cover Pad Topper Overlay with Cool Max&reg; Fabric (includes pillow), Standard King 2 inch memory foam, 4lb density is encased in quilted Cool Max fabric for a total of 2.5 inches. Now, here's a new memory foam bed topper for those who want all the benefits of a visco mattress Our Cool Max 2 inch memory foam mattress topper is the one for you! Nothing compares with the luxury and comfort of our all-new foam topper with Cool Max fabric.