Description: 【High Quality】The waterproof bag is made of polyester, durable and lightweight, for a long time. The waterproof sack has a smooth surface and is easy to wipe clean. 【Easy to Use】The waterproof bag is super easy and quick to use. Put your items in the bag, and roll down 3 to 5 times, then plug the buckle to complete the seal. 【Multi Purpose】The stuff sack is perfect for storing clothes, snacks, and other essentials protected from water damage. 【Floating Design】The waterproof bag has floating design, which ensures your belongings won't get wet even in the event of accidental submersion. 【Multiple Occasion】The waterproof bag for surfing is perfect for swimming, kayaking, boating, sailing, surfing, canoeing paddling, and other outdoor activities. Specification: Material: Polyester Size Chart: 3L: 24cmx11cmx17cm/9.45inchx4.33inchx6.69inch5L: 30cmx13cmx20cm/11.81inchx5.12inchx7.87inch 12L: 36cmx16cmx24cm/14.17inchx6.30inchx9.45inch 20L: 42cmx17cmx27cm/16.54inchx6.69inchx10.63inch 35L: 52cmx22cmx34cm/20.47inchx8.66inchx13.39inch Package Includes: 1 Waterproof Bag Note: Please allow slightly errors due to manual measurement and different monitors.