Ortlieb's highly praised Trunk-Bag is also available with the newly developed Ortlieb Rack-Lock system. With four adjustable hooks on its underside, the Trunk-Bag can be conveniently mounted to virtually all commercially available bike racks. Secure it with a key, and then quickly remove it again whenever you like. No further adapters are necessary with the Rack-Lock system. The waterproof rear bag also has a range of advanced and proven features: robust rip-stop nylon fabric, waterproof TIZIP zipper, and a padded carrying strap that can be fixed to the top of the bag when mounted on the bike. Reflectors on both sides and a loop for an additional rear light (not included) offer enhanced safety. An additional outer pocket (not waterproof) and an inner pocket with snap hook help organizing small items like cell phone, wallet, and keys.