Different compartments and pockets, enough to bring a tent, roll up blanket, clothes, pens, etc. to keep your stuff separate and organized no matter if it's a day trip or a week-long journey. Breathable mesh shoulder straps with plentiful sponge padding help relieve the stress from your shoulder. Molded foam back panel with airflow channels to keep your back cool and dry.DESIGN FOR HIKING TRIP -- Classical carrying system with attachment points for trekking poles, rolled blanket and other equipment. Using high-quality anti-scratch nylon fabric, with the strong hanging system, it's able to carry more items, provides extra strength and long-lasting performance with the lightest weight Nylon is well-known as water-resistant material which can quickly slide water aside before water gets a chance to penetrate the inside. Also, a waterproof rain cover can protect the whole pack from rain and water during Climbing, Camping, Hiking Travelling, etc.