Osprey makes packs of all shapes and sizes that are designed to fit comfortably and perform. Many of their packs feature a lightweight aluminum frame which allows for maximum airflow between your back and the pack for hot days on the the trail. In addition to a great design, Osprey will repair for any reason, free of charge, any damage or defect in our product – whether it was purchased in 1974 or yesterday. If they cannot perform the desired repair they will replace the pack. Osprey is so confident in the quality product they put on the market that they will stand by this guarantee.