【 Packable & Lightweight】This hiking backpack weighs less than 2 pounds and can easily fold into its own pocket for storage, that only measures 8x9x5 inches. When unfolded, the backpack boasts a large 40-liter capacity, perfect for carrying all of your travel essentials. It can even be used as a carry-on backpack to avoid excess baggage charges. Whenever the backpack is not in use, it can easily be stored in any location by folding into its zipped inner pocket. 【Large Capacity & Multi Compartment】With a 40L storage capacity, this backpack features a multi-compartment design that includes a generously sized main compartment, a zipped front pocket, two side mesh pockets, and numerous small pockets. Each compartment is thoughtfully crafted to assist in organizing and accessing all your belongings with ease.The front features a Velcro strap for securing items, and there's a headphone hole on top for music and a water pipe hole for a hydration system. 【Wet Pocket & Detachable Belt Bag】One waterproof wet pocket is added to the main compartment, a zipper on the back of this backpack which led to the internal wet pocket, to better separate sweaty clothes, towels or other personal things after swimming or taking exercise. Moreover, this daypack comes equipped with a removable waist pack that can be used with the backpack to reduce back pressure or separately as an additional carrying option for personal items during outdoor activities.