3Pcs/Set Waterproof Dry Bag Sack Floating Boating Kayaking Camping Ocean Pack     Feature: 30D ultra-high quality DuPont cordura coated silicon fabric waterproof tear, water resistance ≥ 3000mm Fabric surface silicone oil after treatment, water repellent durability than the traditional water treatment method to improve more than 3 times Professional waterproof roll designLine stickers sealed structure, to prevent water from the line into the line High quality UTX multi-resistant fast button     Specification: S length 21cm wide 19cm 1.5L M length 28cm wide 20cm 2.5L L length 29cm wide 23cm 3.5L     Package include: 3Pcs/Set Waterproof Bags