• Designed to fit perfectly between rider and tour box of most popular touring bikes• Rigid construction, even when empty• Full size top opening for easy packing• Top carry handle and backpack straps for easy toting and top accessory strap for extras• Extra side mesh pouch, perfect for maps, etc.• UV, water and weather resistant 1200-denier SaddleTuff and SaddleHyde panels• 21″ W x 18-1/2″ H x 19″ D, measures 4,100 cubic inches