The Vissla Ice Seas Cooler/Dry Bag is perfect for a hike to the beach. The adjustable shoulder straps and chest snap make for a comfortable carry even if full with a 24 pack. The tough tarpaulin material keeps this backpack durable. All seams are sonically welded and waterproof. The cooler pack has a built-in bladder pressure release valve to increase insulation or reduce size for easy packing. Paired with cinch straps to reduce volume and reinforce closure the features this bag provides are unbeatable.