This is a Gregory Citro 20. This 20-liter backpack has a mesh back frame, making it excellent for ventilation in the summer. It has been used for many years for mountain hiking and low-altitude hikes, so there is considerable damage overall, including scratches, dirt, and holes. The harness and zippers function without issue. It has been stored after being washed with an oxygen-based cleaner. There are no odors. Please understand this is a reasonably priced used item.