You are buying a Brand New 3″ High Density Memory Foam Mattress Topper FULL Size (54″ x 74″). 10 Year Warranty. It is covered in an breathable cover. This Memory Foam Topper is hypoallergenic, anti dustmite and inherently anti-microbial. Sleep in quiet comfort with this state-of-the-art high density Memory Foam Mattress Topper. The High Density Memory Foam Mattress Topper is made of NASA developed foam of 100-percent high density visco elastic, non-allergenic, anti-bacterial polyurethane foam. The temperature-sensitive foam conforms to your individual shape, gently cradling your back, hip, head and neck, while disbursing heat and moisture. Materials: 100% high Density Visco Elastic memory foam. Enjoy the Comfort and Support of high density Memory Foam… and fall in love with a Topper that is designed to conform to you!