1.Relentless Protection The dry bag waterproof is made of durable 500D PVC material, which can withstand all forms of water. Whether you're kayaking through tearing rapids, hiking in the pouring rain or spending a day at the beach, this backpack will keep your gear dry. The rolltop closure system provides an impenetrable seal. Simply roll up the clasps tightly 3 or 4 times and then close them with the buckle so that not a single drop of water can penetrate. 2.20L large capacity: The capacity of the dry bag waterproof bag of 20 litres is more than enough for day trips. It can accommodate everything you need for a day outdoors, including changing clothes, food, water bottle and even camera gear. Thanks to the rolltop closure, everything is well organised and quickly accessible without having to look around. 3.Robust and durable for the toughest trails: The waterproof backpack is designed for adventurers who travel on the toughest terrain and expect a long life. Reinforced stitching and durable construction ensure this backpack can be thrown, sanded and carried even in the most difficult environments. Whether on rocky mountain trails or in dense undergrowth, the waterproof bag is indestructible and ready to take on whatever nature tells it. 4.Adjustable double shoulder straps: Long hikes and extended tours require comfort, and this is what the floating dry bag provides. The adjustable double shoulder straps provide ergonomic support, distribute weight evenly and relieve back and shoulders. The ventilated design ensures breathability to keep you cool and comfortable even during intense activities. The capacity of the backpack a balance between space and weight, making it ideal for day trips and long journeys.