•Large Capacity: 20L large capacity, it can accommodate your clothes, wallet, camera, gloves, drinks and other items •Waterproof Material: It is made of PVC + mesh, which does not tear easily. When it suddenly rains, you don't have to worry about the items of your bag to get wet •Comfortable to Wear: Breathable padded shoulder straps can help relieve the stress from your shoulder •Great for Outdoor: A must-have for outdoor activities, hiking and camping Specification: •Capacity: 20L (Size: 36cm bottom*69cm flat, 57cm rolled down) •Product Material: PVC + mesh cloth •Applicable scenarios: caving/stream tracing, etc. Note: This waterproof bag is not allowed to be immersed in water for a long time, but the bag body can be submerged in water when tracing. Package included: •1 x Backpack •Other things not included