Features1Crafted from ripstop nylon fabric for extreme light weight and durability. 2Main compartment for the hydration bladder.Zippered front pocket for small items.Waist pocket keeps your mobile phone at hand. 3Breathable mesh back and shoulder straps provide ultimate comfort. 4Reflective elements for added visibility and safety at night. 5Folds into the zippered bottom pocket to easy storage. 6Comes with a 2L water bladder to keep you hydrated all day long. 7 backpack for Cycle, camping, hiking, traveling, and other outdoor activities.SpecificationThis backpack is made of high-quality nylon fabric, lightweight and tear-resistant. It can be folded into the bottom pocket for easy storage and carrying,very convenient for Cycle, running, camping, traveling, and other outdoor activities. Features:Crafted from ripstop nylon fabric for extreme light weight and durability. Main compartment for the hydration bladder.Zippered front pocket for small items.Waist pocket keeps your mobile phone at hand. Breathable mesh back and shoulder straps provide ultimate comfort. Reflective elements for added visibility and safety at night. Folds into the zippered bottom pocket to easy storage. Comes with a 2L water bladder to keep you hydrated all day long. backpack for Cycle, camping, hiking, traveling, and other outdoor activities. Specifications:Foldable Backpack:Color: Green / Black / Orange / Yellow (optional) Material: Nylon Dimension: Approx. 40 * 20 * 7 cm / 15.7 * 7.9 * 2.8 in Weight: Approx. 265 g / 9.3 oz 2L Hydration Bladder:Size: 40 * 17 cm / 15.7 * 6.7 in Hose: Approx. 99 cm / 39.0 in Weight: Approx. 125 g / 4.4 oz Package List:1* Backpack 1* 2L Hydration BladderPackage List1* Backpack 1* 2L Hydration Bladder