Made of superior TPU, coated inside and welded seams to seal out water which effectively protect your electric device, clothes, snacks and other items from water, sand anddirt during river trekking, boating, rafting, kayaking and beach leisure. Features: Coated inside and welded seams, sealing out water to protect your items. 600D TPU technical fabric, reliable and wear resistant to provide a long time lasting protection of your stuff. Sealed the bag and leave it on the water to do other water sports, no worry about the items getting wet. Roll top closure, easy operation and with a handle for convenient carry. Protect your stuff from water, sand and dust during river trekking, drifting, swimming and beach leisure. Specifications: Material: 600D TPU Capacity: 10L / 15L / 20L (optiuonal) Flat size: 10L: 55 * 25cm / 21.6 * 9.8in 15L: 60 * 35cm / 23.6 * 13.7in 20L: 67 * 41cm / 26.3 * 16.1in Use size: 10L: 30 * 19 cm / 11.8 * 7.4in 15L: 42 * 23cm / 16.5 * 9.0in 20L: 46 * 32 * 14cm / 18.1 * 12.5 * 5.5in Weight: 220-730g / 0.4-1.6lb Package weight: 230-745g / 0.5-1.6lb Package List: 1 * Waterproof Dry Bag