The whole bag is used of waterproof fabric, strong Waterproof, even if the backpack fell into the water you are not afraid. It's suitable for backwater, drifting, snorkeling, exploratory heading , beach, seaside and other outdoor activities. Features - Color: Yellow. - Material: Waterproof fabric. - Size: Approx. 28 x 19.5 x 0.3cm. - The fabric of dry sack is and smooth, easy to clean. - Reflective Trim: Alert passing vehicles assure your safety when hiking and cycling at night. Camper can find it accurately in dark. - Waterproof Zipper Pocket on Surface: Convenient to store small items: key, tissue, and . Different from other dry backpacks need open the to find them. - Perfect for swimming, boating, and fitness and storing items, such as bikini, vest, shorts, towel, and cell phone. - Roll-top Closure System: Solid watertight seal keep dry in any wet situation where the bag is not fully submerged. Protect valuables water, mud and sand. Adjustable straps allow dry bags to make paddles broad in kayaking, Canoeing, and Rowing projects. Warm Tip: Dear buyer, Due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! Thank you! Package list: 1 x Waterproof Dry Bag