Dowco Fastrax Messenger Bag is designed to hold books, laptop, phone, folders, music players and anything that might be carried from home to the office or school. The Bag easily mounts to most scooters behind the rider, utilizing the universal attachment strap on the back of the bag. Adjustable shoulder strap, with a drop length up to 21 inches. Features a front storage pocket with key clip, phone storage pocket and credit card pockets. Also features a side mesh pocket for a beverage, as well as an internal padded pocket for a laptop. The method you choose to store your ride and gear is a critical decision. Storing it outdoor, indoor or both, factors like waterproof and water resistant options must be considered; you also need to think about fade resistance and security factors.