This lightweight cover is designed for and best suited for indoor storage, but it also works well for occasional outdoor usage such as covering up at the hotel for the night. If used outdoors, this is a full cover that will keep the morning dew off your bike seat, and minimize dust accumulation - but it will provide only limited resistance to rain showers. Being Ultralite, this full cover will pack quite small, making it the best cover for travel when the main goal is to keep the dirt away and hide your prized possession from site at night. 3 year guarantee. Features: Full size lightweight polyester travel cover Sewn-in flap allows moisture to escape Elastic shock cord hem, convenient storage bag