Sea to Summit Big River Dry Bag - Lash to kayaks, bikes and 4WDs with confidence, or add a Dry Bag Sling (sold separately, sizes 5L – 35L only) for comfortable hands-free carrying. Big River Dry Bags are a durable and abrasion resistant storage option that uses a strong 420D nylon fabric. If your idea of outdoor recreation involves challenging water sports like kayaking, canoeing or rafting; or rugged land activities like bikepacking or motorcycle touring, they are the perfect storage bags to keep your gear dry. A white interior laminate affords greater visibility, and lash loops allow secure stacking or attachment to watercraft, motorcycles and other equipment. The hypalon non-wicking roll-top closure keeps water out, and the Field Repair Buckles can be replaced in seconds with just a Philips screwdriver. Big River Dry Bags were also designed with an oval base to save space when packing and prevent them from rolling away. Features Triple-coated base increases abrasion resistance Abrasion-resistant 420D nylon laminated with a TPU film for strength and waterproofness Multiple lash points provide versatility for mounting to kayaks, bikes, motorbikes and 4WDs Waterproof, double stitched, reinforced, tape sealed seams Waterproof non-wicking roll top closure does not wick moisture White interior for greater interior visibility Oval base prevents rolling away and packs better PFC-Free