Easy to pack and quick to access - The translucent material makes it easy to see the contents, and the ideal cylindrical shape with a high height-to-width ratio makes packing easy. Expand it when putting things in, and roll it up from the top to compress it. Highly waterproof - Made of silicone-treated ripstop nylon, with double-stitched reinforced waterproof seams, and tape-sealed. Reinforced stitching at points of high stress; 5,000mm water head (the higher the number, the higher the waterproof performance of the material). Convenient gear - Available in 2L/4L/8L sizes. 2L is suitable for snacks, travel essentials, gloves, and hats; 4L is suitable for shell jackets, gloves, and beanies; the 8L dry bag is suitable for storing down sleeping bags or spare clothes. Truly ultralight & highly durable - The total weight of all 3 sizes is only 90g, making it lightweight and comfortable to carry, taking up almost no space. The 20D ripstop nylon material is laminated with a high-touch waterproof membrane on the back, increasing the overall strength and material repairability. Ergonomic design & specifications - The Hypalon loop allows you to hang the dry bag or use it as a laundry bag. You can quickly roll up the top of the bag from the printed label and secure it in the ideal position. Dimensions: 2L: 19.5x26.5cm (7.7x10.4 inches) / 4L: 23x35cm (9x13.8 inches) / 8L: 28.5x47cm (11.2x18.5 inches).