MOUNTAINTOP 40L Hiking Backpack, A must have for hiking, camping, traveling and cycling, helps you reach the most epic views the world has to offer, 1、Comfortable and Breathable: Mesh encapsulated ventilated back panel design keeps you cool and dry on the trail. 2、Water-resistant polyester, include rain cover in bottom pocket for protect hiking daypack in the rainy day. 3、Perfect Size for camping backpack, 40 liters of capacity is enough for a full day on the trail. 4、Various compression belts can additionally carry trekking poles, sleeping bags, tents and other camping equipment. 5、Hipbelt and shoulder harness designs deliver a tailored, customized fit experience. 6、Side stretch mesh pockets: Quick access to water bottles(usually pack 0.75 liter bottles in) Product Information: Size: 21.7x13x7.9 IN(55×33×20CM) Weight: 2.31lbs(1.05kg) Capacity: 40L Material: Water-resistant polyester fabric Package contents: 1 MOUNTAINTOP 40L Hiking Backpack 1 Rain cover