-. Binding : Misc. -. Brand : Enknight -. Feature : MULTIFUNCTIONAL- Three main pockets designed with insulating compartment for water bladder or laptop,two small side pocket fits your 5.5" phone,a helmet net and a rain cover.Many reflective stripe on the backpack to better protect your safety.The back suspension venting system is easier to heat dissipation. / LIGHTWEIGHT & BIG VOLUME - 20L volume include 3 storage compartments and a zipper on the bottom,it will tmake the capacity is bigger and fits your clothes,iPad,phones,camera,water bottles or umbrella,bicycle repair tools and other personal belongings. / WATERPROOF & DURABLE - High quality waterproof and tear resistant nylon material,duarable Abrasion Resistant SBS metal zipper.Backpack with a net pocket for your helmet and a rain cover to better protect your all things. / FIT YOU PERFECTLY - Adjustable shoulder/chest straps will fit chest sizes from teenagers up to adults (men and women). Reflective patches makes you travel safer at night£¬the back suspension venting system is easier to heat dissipation£¬it will allow you to have a relaxed, happy, comfortable travel. / 2L BLADDER & FDA APPROVED - The size is 36.5*18CM and pipe length 100CM.Double side TPU material,it has the characteristics of high resistance to hydrolysis, strong antibacterial, high strength and high water resistance. -. Label : ENKNIGHT -. Manufacturer : ENKNIGHT -. ProductGroup : Sports -. ProductTypeName : SPORTING_GOODS -. Publisher : ENKNIGHT -. Studio : ENKNIGHT -. Title : ENKNIGHT 20L Waterproof Cycling Hydration Backpack Travel Bag Hiking Daypack