Premium heavy-duty waterproof ETRNL Summer Dry Bag is the perfect multi-purpose dry bag for any adventurer. This bag will keep your gear completely dry, regardless of the activity. The bag is made of 500D high density PVC tarpaulin and is 100% water proof. The heavy-duty material is abrasion-resistant and anti-tear. It's extremely tough and durable which provides you peace of mind while you float down a river, hang out by the lake, or bath in the sun on the beach. It's the perfect solution to keep sand from invading your belongings. Soft EVA-made straps make the dry bag easy to carry or wear over your shoulder. To create the water and air-tight seal, all you need to do is roll down three or four times from top and connect the buckles. Once your clipped in, you're good to go. Feel free to toss it in the water and watch it float - but not too far! -Advanced thermo welding technology.Make sure the construction of dry bag flawless waterproof.