1. Super windproofThe bottom of the exercise bike cover has a drawstring design, which helps to tightly fix the stationary bike cover. There is an adjustable buckle to achieve a double windproof effect, perfectly coping with all kinds of bad weather. Even on windy days, it will not be blown away, ideal for allweather indoor and outdoor use. 2. CleanOpen the zipper, put the elliptical cover on the machine, pull up the zipper and then tighten the drawstring! Wipe with a damp cloth and let it dry in the sun for next use. Comes with a storage bag for easy storage. 3. Heavy Premium MaterialPremium Oxford coating material, double layer thickened fabric, can be washed by hand, with strong tearproof, waterproof, and sunproof properties. It can be used for a long time. 4. Fits Most Models: 3 sizes available, fits most ellipticals/fitness equipment. Please make sure to measure your elliptical size before purchase.