Trekking BackpackTrekking Backpack Outer material made from 100% recycled material Spacious, quick access main compartment, front and bottom compartments Possibility of expanding the volume using a drawstring and height adjustable closure with internal and external compartments With elastic side pockets, loops and zip pockets on the hip strap Hanging apparatus for a drinking bag and a hole for a tube (drinking bag not included) With length adjustable strap and back