The fabric used for the front of these pillowcases is known as “ice silk” – an ultra-high molecular polyethylene named for its ability to stay cool. The reverse is COOLMAX® – originally developed to help athletes stay cool and dry. Supplied in a set of two, they have zip-off covers and, at 73 x 48cm, they’ll fit your standard pillows. They could help you to enjoy a much more comfortable night’s sleep. Pillow inserts not included.