Lucky Bums Kid's Switchback Backpack Switch back and forth between the trails and the schoolyard with this hydration compatible 18 liter capacity pack Padded airflow back panel and moisture wicking shoulder straps plus and adjustable sternum strap with integrated safety whistle Fill up 3 compartments and 2 side stretch mesh pockets with necessities for the trails Made of 600D Honeycomb Ripstop with PU Coating material and complete with an internal organizer pocket for school gear or trail gear Recommended for kids with torso measurement from 12.5 - 15.5-Inch (suitable for kids aged 6-13) Also includes a cinch that extra layer with the 2 reflective loop cinch straps