Constructed with 600D PVC-Free urethane coated nylon, and featuring our a secure 3-roll close and convenient exterior zippered pocket, the U/B dry bag is the go-to all purpose dry bag for you. 3-roll closure system, the Micro Dry offers compact splash proof protection for your valuables and electronics.Your gear will be dry with our U/B Dry Bag. The U-shaped welds offer extra vertical structure to make the bag stand up and open for easy packing. Built with heavy-duty PVC-Free materials, the U/B's are as eco-friendly as they are stylish. U/B's feature an exterior access splashproof zippered pocket for quick and easy access to keys, and more. Constructed with heavy-duty 600D urethane coated polyester on 3 sides and a thick coated clear or solid face panel.