The universal mount OGIO Tail Bag is super functional and easy to use. The expandable main compartment is 30 liters in capacity and has a reinforced grab handle for grab-and-go convenience. Deluxe main compartment with 240 cubic inches of expansion volume. Sleek streamlined airflow surface design. Top organizer pocket. Dual side accessory pockets. Integrated hidden rain hood. Reinforced textured neoprene non-slip pad for paint protection. Universal webbing mount system for secure attachment. Easy grab reinforced handle. Add OGIO Saddle Bags (sold separately) for a complete rear bag bike set. Dimensions: 7"H x 13"W x 14"D (10"H expanded) / CM 17.5 H x 33 W x 35.5 D (25 H expanded). Weight: 2.2 pounds / 1 Kg. Capacity: 1274 cubic inches / 21 liters (1820 cubic inches / 30 liters expanded).