The Aircomfort mesh back allows air to move between your back and backpack. Plenty of small pockets, durable materials and excellent quality - just what you expect of a Deuter! - SL model: for a shorter back - The backpack has a light steel frame - Stretch side pockets - Organizing pocket on the front - Stretchy kangaroo pocket on the front - Snug-fitting hip belt - Adjustable chest strap - Compatible with max. 3-liter hydration bags - Rain cover included - Inside valuables pocket - Hiking pole holder - 50% of the main fabric (210 denier polyamide) is recycled - Reinforced fabric in 600 denier polyester The product does not contain PFCs.