Waterproof drybag backpacks designed specifically for cyclist Seal Line Urban Backpacks are unique roll-top backpacks provide watertight protection around town and on the trail. Includes an innovative QuickClip closure for easy, one-handed fastening/unfastening, as well as our Modular Accessory Pocket system for attaching add-ons.Water-tight PVC-Free 600D PU-coated Polyester and reinforced urethaneErgonomic padded shoulder straps with sternum strap and hideaway waist beltExternal pocket and carry handle. Padded backpanelRoll-top closure with QuickClipModular Accessory Pocket system for attaching add-ons such as Zip Pocket or Mobile Electronic Case (sold separately) Item SpecificationsColorGreenTotal Volume2270in3

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