The new seat cushion bag with extra large storage space is suitable for most travel activities. The double side openings provide a large storage capacity and are matched with a mesh elastic fixed net. All your belongings including tools, keys and other personal belongings can be easily stored while riding. When you need more space, just open the back zipper to get more storage space. Such an outstanding design can be used on compact, trail and other travel vehicles for long-distance or day trips.