TOMSHOO 45+5L Outdoor Sport Hiking Trekking Camping Travel Backpack Pack Bag Mountaineering Climbing Knapsack with Rain Cover Durable: Water-resistant and tear-resistant polyester, bearing capacity up to 40kg. Comfortable: With padded shoulder and waist straps for optimal comfort. Functional: Spacious compartment with laptop compartment, and numerous pouches, keeping your items well organized. Air Tunnel: Air tunnel design on the back for well ventilation. Rain Cover: With rain cover for rainy day use.