YiKaiSu 50L Outdoor Camping Waterproof Nylon Backpack Hiking Climbing Daypacks Mountaineering Bag Unisex Travel Bag High quality fabrics: anti-microbial, breathability, flexibility, ergonomic Super suspension system,breathable perspiration,relieve burdened. Powerful handling capabilities, high-capacity load space Outdoor plug-in system, you can plug tents sleeping bags Multipurpose: outdoor travel, hiking, trekking, camping and other outdoor activities.