Montbell started making outdoor equipment in Osaka, Japan in the mid 1970s with kit like tents, sleeping bags and jackets. They also, surprisingly, make a motorcycle specific roll-top dry bag. The Montbell Dry Container has a welded seamless construction using a Polyester tarpaulin material to produce a tough, waterproof bag. The Dry Container can be attached to the bike’s seat with bungee hooks and loops. Bag capacity is 25L (676 oz) and it weights 810g (28.6 oz).