Great small backpack (72 oz capacity) that doesn’t feel small at all. It has a multitude of pockets, all with bidirectional zippers with tabs (largest one only works in one direction now). Inside there is a dedicated place for everything. It has a crampon patch on the back, as well as side pockets for securing trekking poles. It even features an ice axe loop! There is an expansion zipper that makes the whole cargo area 2 inches bigger. There is also a small zipper near the bottom that releases a large mesh pouch with hooks on it that attaches to eyelets near the top and provides storage for your helmet when it isn’t being worn. Inside the pack, the compartment that holds the bladder is insulated to help keep things cool. (Bladder not included) The shoulder straps are luxuriously wide and the sternum strap is identical to what you would find on a high-end day pack. It also has channeled back padding that allows more cooling air flow. Great used backpack for biking, hiking, traveling, or whatever needs you might have!