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 traveling and sports. The roll closure with stiffener bar has its roots in stuff sack technology. It fits perfectly into bike trailers and sizes S or M can be combined with Ortlieb Back- and Front-Rollers Plus and Classic on the rack for bike touring. This robust multi-talent bag is also good on motorcycles. Comfortably carried with adjustable padded shoulder strap and carrying handles. - 4 sizes- 24, 31, 49, & 89 liter capacities - Multipurpose bag for many activities: sports (e.g. wet diving suits), travel, leisure, biking, motor biking, expeditions, canoeing, trekking - Roll closure with stiffener bar - Buckles for combining with bike panniers. - Removable, padded shoulder strap with snap hook - Indication of volume on inside - Variable packing volume thanks to compression straps and roll closure - Easily accessible comfortable bag with wide opening - Easy to clean inside - Bag comes with padded shoulder strap - Note: In order to meet standard IP64 (6=dustproof, 4=protected against splash water coming from all directions) the roll closure must be rolled at least 3-4 times.