Hydration Backpack Hydration Pack Water Backpack For Hiking Running Biking Road Runner Hydropack Backpack Climbing Features: Color: Black Material:polyester Product Size: 43x23x5cm/16.93x9.06x1.97in Packaging Size: 20x10x5cm/7.87x3.94x1.97in Product Weight: 380g/0.83lb Gross Weight: 380g/0.83lb Description: With padded shoulder straps,breathable system and designs,it is the good tool for outdoor sports.good small hiking backpack for men and women. The water bag is made of good quality materials,which makes drinking water convenient and fast.Just pull out the rubber spout and the water will flowing out; push the rubber spout back to close it without biting anything. This cycling backpack comes with adjustable waist and shoulder straps,which can be adjusted according to your torso.The good size strikes a good balances between reasonable weight and volume,while also providing sufficient water volume. Reflective trims ensures safety at night,and the strap buckle can fix the spare strap.In addition,there is a mesh pocket on the front of the bag,which is convenient for storing mobile phones,towels or other items for quickly through. It is ideal for men and women running,skiing,cycling,hiking,mountaineering,snowboarding,hunting,music festivals,carnivals,kayaking and other sports. Package Contents: 1 x bag 【PERFECT SET】: Included BPA FREE food grade hydration bladder.Every waterproof nylon backpack is equipped with adjustable straps,heavy-duty and invisible zippers,shoulder straps and a safety reflector on the front of the backpack,which have super durability and reliability for daily use. 【KEEP LIQUID COOL UP TO 4 HOURS】: With the special thermal insulated bladder compartment,Hydration Pack keeps your liquids cool for up to 5 hours,at least 4 hours.It is guaranteed that you can freely drink ice water while running,hiking,mountain biking,and climbing. 【MULTIPLE STORAGE COMPARTMENT】: Includes 2 deep pockets and 1 mesh pocket,enough space to store clothes,phones,wallets,keys,snacks,etc.The front stretch pocket allows you to pack more things while hiking,running,cycling,outdoor sports,etc. 【LEAKAGE PROOF WATER BLADDER 】: Removable insulated hydration hose with suck mouthpiece,it's simple to drink,pull the rubber mouthpiece out and the water comes right out.The large opening makes it easy to add ice cubes,clean and dry.There is even a clip on the right shoulder strap to help secure the bladder hose. 【PERFECT OUTDOOR BACKPACK】: If for some reason you are not satisfied with Hydration Backpack,please feel free to contact us right away to get a new Hydration Backpack or free bladder.