Gregory Nano 18 Backpack | Travel Backpack from Gregory | Padded airmesh shoulder harnesses with one-handed sternum strap buckle and hydration routing loops Breathable die-cut backpanel and tuck-away webbing hipbelt Independent zippered pocket for hydration reservoir with routing to harness, or space for your tablet Large, zippered accessed main compartment and dual compression straps with quick release buckles Quick access zippered front pocket with key hook and organization sleeves Side stretch mesh pocket for water bottles and quick storage Custom comfort-grip molded zipper pullsReflective webbing loops for visibility