With this Stansport® 12 Liter Day Pack with Hydration Bladder you’ll have room to store all of your hiking essentials while also staying hydrated along they way. Designed around a 12 liter pack and constructed of lightweight ripstop polyester, this bag is perfect in size for your day on the trails supplies. 7 pockets in total include 2 mesh shoulder strap pockets, 2 mesh bottle pockets, 1 vertical outer zipper pocket, 1 inner storage pocket and 1 main compartment pocket with dual zipper opening. Front and back reflective loop strips provide increased visibility in case of an emergency, and we’ve also included a built-in safety whistle, as well as gear lops for keeping external accessories and supplies secure to the bag. Breathable padded shoulder straps and dual shoulder strap clips keep you cool and comfortable while on the trail. Weather you’re hiking, trail running, cycling or headed out to a festival, this hydration pack has you covered when you're out and about.