The FLY Racing Tail Bag is expandable to carry items you may have picked up along your ride. A rain cover is included to keep your items dry during wet weather conditions.; Expandable for larger storage capacity Red lined interior Included rain cover Removable strap mounted base Integrates with FLY Saddle Bags Anti-scratch mounting surface Interior pockets to keep your things organized Reflective piping and logos Convenient carry handle Included shoulder strap Interior key clip 33 liter combined capacity - expanded capacity 38 liters Measures: 17" L x 9" W x 9-1/2" W Replacement part available but sold separately: 510-2064 (base), 510-2065 (rain cover) and 510-2066 (base mount)