Polyester Made from a soft, stretchy, poly blend scuba material. The Nth Fit Screen Cover gives your fitness screen the protection it needs when it's not in use. Compatible with the Echelon Connect Bike EX-5s and EX-7s 22" Screen Only Made of 100% polyester. Machine washable and air dry. It is stretchy and has an elastic inside to hold tightly to the screen. 100% Money Back Satisfaction Guarantee