Lightweight, all-weather, water-proof cover. Air vents with VELCRO® brand hook-and-loop closures. Reinforced grommets sewn into cover. Waterproof heat sealed seams. Elasticized bottom for snug fit. Includes storage pouch. Note: Wait for bike to cool before applying cover. Cover Sizing: Medium - For small to mid-sized sport bike. Large - For large sport bike. X-Large - Sport touring bike.