... elastic foam mattress topper) king, queen, twin, full sizes available, velour Memory Foam Mattress Topper (memory foam topper,viscoelastic foam topper) Features: 1) Material: memory foam in ... /ft3, 4lb/ft3, 5lb/ft3, 5.3lb/ft3, compounded with convoluted foam, etc.2) Dimensions: twin, full, queen, king, cal-king, in ...