Keep your valuables high, dry, and COLD when on land or at sea. Combining the utility of a dry bag and the insulation of a soft cooler, it's the ultimate flexibility for your adventures. Use the Dry Bag by it self or use it as a cooler with the insert. The Dry Bag: Easy roll-top closure and thermal heated seams provide complete waterproof protection. Constructed of 500D PVC, it's not only durable but odor and stain resistant. An adjustable and removable padded shoulder strap, side handle and D rings provide various ways to carry and tie down. The Cooler Insert: Transform your Dry Bag instantly with the Cooler Insert. Insulated composite bubble core wrapped with a durable PVC plastic keeps drinks and food frosty on the trail and at camp. For proper seal: Purge excess air, roll down tightly (at least 3 times), bring ends together and buckle. Features: - Capacity: 25 Liters - Empty Weight (with Cooler Insert): 2lbs