Cooling Fabric: Made of cool bean high elasticity cotton fabric that is breathable and silky, instantly dissipating heat. Elastic Straps: Four elastic corner straps stretch to fit mattresses of various heights, slipping and wrinkling. Easy Installation: Stretchable straps make installation simple, holding the topper securely in place. Care Instructions: Machine wash cold, tumble dry low, do not iron, do not bleach, do not use fabric softener. Sizes And Colors: Available in 90x200cm and 120x200cm sizes and multiple colors including pink, green, blue, grey, and multicolored.