Waterproof professional backpack. Provides waterproof protection for your phones, camera, clothes, food from water, sand, dust and dirt. Lightweight and durable premium material not only they are light but also durable and compact. Suitable to keep contents dry in any wet situation where the bag is not submerged. Dry sacks float when partially filled with air, but are not intended as a flotation device. Highly water resistant but not guaranteed to be 100% waterproof - should not be fully submerged.