This 100% waterproof travel bag has all the advantages of an easy to use dry bag: its flexible and variable packing volume adjusts to any situation and takes all the gear for travelling and sports. The roll closure with stiffener bar has its roots in stuff sack technology. It fits perfectly into bike trailers and size 24L or 31L can be combined with Ortlieb Back/Sport-Rollers on the rack for bike touring. This robust bag is also good on motorcycles. Comfortably carried with adjustable padded shoulder strap and carrying handles. The Rack-Pack is available in four sizes.