The Dahon CarryOn cover provides easy protection from grease and dirt, while also offering a comfortable shoulder strap for carrying your bike. When you"re ready to ride, stuff the lightweight bag into a durable saddle bag under your seat.An alternative to the El Bolso Bag, the CarryOn cover is not meant to be a bag for your bike. It"s simply a cover, protecting the bike from the rain and your clothes from the grease. Dahon designed it with straps on the inside, so the weight of the bike rests on your shoulders rather than on the bag itself. There is no bottom, so you can just pull the cover off and stuff it into the saddle bag when you"re ready to ride.In addition to the cover, the CarryOn saddle bag has a small compartment for keys, wallet, or anything else you"d like to stow away while you ride.