ARIALK Backpack Nylon Leisure Female Bag Male Laptop Holder Unisex Capacious Adjustable Business PC Bag Comfortable Multipurpose Two-Way Zipper Outdoor Sport 3 Color Breathability Heat Dissipation Material :Nylon,ultra durable. Product Dimension :11x5.9x17.3 inches. Character Primary pocket with Two-way zipper,comfort top handle,waterproof,high-capacity,etc. MultipurposeSport-bag Outdoor Backpack.Nice for travel,hiking ,vacation,autumn & spring outing,bus trip. WARNNING:Waterproof JUST rain-resistant but up to water.