1. Easy Operation and Cleaning: Just put your gear in bag, grab top woven tape and roll down tightly 3 to 8 times and then plug buckle to complete seal, whole process is very quick. Dry sack is easy to wipe clean due to its smooth surface.1 X 6" Inline Smart Controller Duct Fan 1 X 6" Carbon Filter 1 X Grey/Black 6-inch Flexible Ducting 3 X Stainless Steel Clamps 1 X Grow Room Glasses 2 X Lifting RopesVentilation Kit Inline Duct Fan Carbon FilterWhichever adventure you are going on, such as kayaking, canoeing, snowboarding, skiing, hiking, camping, backpacking, our bag is the gear you can truly reply on. It is perfect to keep your stuff dry in any wet condition where the bag is not submerged. Its waterproof, light, compact and durable features determine that it must be an essential part of your outdoor gear kit!2.Multiple Sizes: 5 Liter to 40 Liter to meet your demands on different occasions. 5L, 10L include one adjustable and removable shoulder strap for cross-body, 20L, 30L, 43L include two straps for backpack style carrying.3.Versatility: The dry sack can float on water after being rolled and buckled, so you can track your gears easily. Perfect for boating, kayaking, paddling, sailing, canoeing, surfing or having fun on the beach. A nice Holiday Gift for families and friends.4.Designers firmly believe that protect your valuables is crucial for keeping a good mood during your outdoor adventures. So we designed this dry bag to keep your stuff dry, clean, safe and protect them from rain, snow, sand, dust and mud to ensure you enjoy outdoors without worry.