FOUR ELASTIC CORNER STRAPS: Stretchable straps adjust to mattresses of varying heights, securing the topper firmly in place. COOLING ICE SILK FABRIC: Made from breathable microfiber with Cool Bean technology, providing a silky, cool surface that dissipates heat for comfortable sleep. EASY INSTALLATION: The elastic corner straps make installation simple and keep the topper from shifting or wrinkling during use. CARE INSTRUCTIONS: Machine wash cold, tumble dry low; do not bleach, do not iron, and do not use fabric softener. WHOLE PIECE FILLING: High elasticity fiber cotton filling is designed as a solid piece to resist clumping and maintain shape over time.