Waterproof Material - Exercise bike covers are made of high-density durable Oxford fabric with silver-coated backing and a waterproof PU layer, providing excellent dustproof and UV resistance. It can effectively protect your treadmill or sports running machine from sunlight damage. Drawstring Design - The convenient elastic hem cord with adjustable toggle keeps the cover secure on windy days. Designed with a drawstring closure for a snug fit, helping prevent the cover from slipping or blowing off. Universal Fit - Our exercise bike cover fits most standard-sized exercise bikes. Compatible with multiple exercise bikes up to 65 inches in size. Easy to Use - A fitness air bike cover specifically designed for exercise bikes. Open the cover, place it over the machine, and tighten the drawstring. One person can install it easily. Easy to Clean & Store - When the cover is dirty, rinse it with water or soak in cold water and hang to dry. Includes a black polyester storage bag. Fold and store the cover in the bag when not in use to save space. Weight: 400g, 600g Color: Black, Silver Material: 210D Oxford Cloth Quantity: 1 piece - spinning bike cover