1. The Fitespot Backpack Dry Bag is waterproof, durable and scratch-resistant, made of polyester and TPU seals to ensure it is waterproof and breathable. It keeps your belongings dry and clean from water, dust, dirt and snow. 2.20 liters of space is enough to store clothes, shoes, towels, snakes, flashlights, binoculars and your other gears for your daily travel. 3.The small front exterior pocket has a zipper closure for quick access to your essentials, additional mesh pockets separate wet items from the dry main compartment, and two side pockets store umbrellas, water bottles, and more. 4. The top roll-top closure ensures that the dry bag is not only waterproof, but also airtight. If you participate in water activities or paddle boarding, it's a good idea to keep some air in the dry bag, then quickly roll the top 3 to 4 times and clip the clasp. Even if the bag falls into the water, you'll be fine. The dry bag can float on water. 5.Perfect for all kinds of outdoor adventures such as rafting, hiking, kayaking, canoeing, surfing, rafting, fishing, swimming and other sports activities.