Straps: Four elastic corner straps provide a secure fit on mattresses of various heights. Fabric: Made of breathable microfiber fabric with cool bean material for comfort. Installation: Easy to install with stretchable straps that keep the topper in place. Care: Machine wash cold, tumble dry low; do not bleach, do not iron, do not use fabric softener. Sizes: Available in 90x200cm and 120x200cm options.