Rhinowalk Fortress Series Side Case Expansion Waterproof Bag. The ultimate companion for adventure riders. This 16L capacity back seat bag combines rugged durability with weather protection, featuring premium 8400 nylon construction with double-sided TPU coating to keep your gear dry in any condition. Designed for versatility, the bag includes an adjustable shoulder strap (approximately 150 cm) for convenient carrying when off the bike, plus a secure mounting strap (approximately 56 cm) for stable attachment to your motorcycle. Weighing just 1750g, it adds minimal bulk while maximizing storage. Perfect for ADV touring, commuting, or weekend getaways. Waterproof construction protects electronics, documents, and personal items from rain and splashes. The compact 36.5 x 22 x 21 cm dimensions fit most motorcycle frames without obstruction. Built to last with no harmful chemicals. Your reliable gear hauler for every ride.