It's a Mainstays 2-inch memory foam mattress topper that's breathable and it’s 2-inch thickness adds a layer of comfort to your mattress. This 2-inch Mainstays memory foam mattress topper will extend the life of your mattress. The Mainstays 2-inch memory foam mattress topper gives you a medium firm comfort sleep level. This is a Plush 2-inch Mainstays memory foam topper infused with gel that creates a breathable layer of comfort and support conforms to the contours of your body for enhanced comfort and pressure relief.