This is a must for those who have to store their bikes outside. The covers comes in two sizes, large up to 1100cc and xlarge 1100 cc and up. Constructed of water repellent nylon for protection from the elements. Innovative vent allows for drying of harmful condensation and water vapor. Compact design allows for ease of transport on trips. Elastic hem assures the cover remains securely in place. Sewn-in reinforced grommets make fastening of cover simple and secure. Storage pouch is included for convenience.