rupumpack insulated hydration backpack pack with 2.5l bpa free bladder - keeps liquid cool up to 4 hours, lightweight daypack water backpack for hiking running cycling camping, 18l rupumpack <b>lightweight with multiple storage compartments</b> <p>a lightweight with enough volume to take your belongings safely is indispensable when you are running, hiking, cycling, hiking, fishing or even when you go to work or school everyday. </p> <p>especially this is a backpack with hydration insulation layer which works great for 2.5l bladder and can keep your liquid cool for up to 4 hours. </p> <p>designed with multiple storage compartments yet weighs only 1.4 pounds unfilled, this practical, durable and reliable daypack from rupumpack is definitely your perfect daily companion. </p> <p>there's no limitation to the activities you can take this backpack along for. great choice for both men and women. </p> <p><b>outstanding designs make it the best choice in the market: </b></p> <p>- hydration insulation layer works great for 2.5l bladder and can keeps your liquid cool for up to 4 hours.</p> <p>- one open compartment designed to store your quick-dry sweat towel or umbrella conveniently.</p> <p>- two pockets on the extra wide waist straps for safe storage of your valuables like phone, keys, wallet, etc. </p> <p>- shock absorbing chest strap and built-in safety whistle for any emergency situation.</p> <p>- safety reflectors on the shoulder straps and front side of the backpack.</p> <p>- lightweight but with large capacity to meet your every need in day-long outdoor adventures.</p> <p>- adjustable shoulder/chest/waist straps for a customizable fit.</p> <p>- high density water-resistant nylon material with heavy duty and hidden-teeth zippers.</p> <p>- thick ventilated mesh padding in the back area as well as the shoulder straps and waist straps ensure comfort of the pack.</p> <p>- 100% money back guarantee, you got nothing to lose.</p> <p><b>shoulder your rupumpack and start your new life now! </b></p>