Dual Layers & Reversible Firmness: Combines 1 inch supportive firm foam with 2 inch gel memory foam, this king size mattress topper gives you a balanced firm feeling. It contours your body but won't let you sink in too much. Rejunvate the old mattress by making it firmer. Moreover, if you still feel the topper is soft, you can turn over the memory foam to get a extra firm mattress topper Cooling Gel Swirl memory foam: The top layer of the bed topper king is gel-infused swirl memory foam, it has thousands of cooling gel beads to regulate your body temperature. The memory foam contours your body, let you have restful sleeps back. Luxury Tencel Fabric: What we are always trying hard to do is creating cozy spaces for our customers. That’s why we choose tencel as the cover for this memory foam mattress topper. Tencel is a luxury fabric that is often used on high-end products. It gives soft and breathable and cooling touch, makes every sleep a extravagant indulgence