The Junior Features Deuter’s Proven Airstripes Back System For Effective Ventilation. The S-shaped Shoulder Straps With Soft-edge Finish Make It Comfortable To Carry And The Sternum Strap Keeps The Pack Securely In Place, Even When Running Hard. In Addition To A Spacious Main Compartment, It Has A Stretch Stash Pocket On The Front And Stretch Side Pockets For A Whole Host Of Items. The Extra-tough, Pfc-free Recycled Fabric (Using 13 X 0.5-liter Pet Bottles For Each Pack) Makes This Green Button-certified, Bluesign® Product A Practical Companion For All Their Explorations In The Natural World.