I own an Osprey pack and an Osprey rolling bag. This "pack" does not fit my 6"-4" 240lb frame. (no, I am not anywhere close to the presidential windbag "Flabby McGolftits"). It is very tight in a shirt, impossible without pain once I added a heavy shirt and a jacket. The daypack is tiny, the "key" pocket is on the outside and cannot be secured, sponsored no doubt by pickpockets, and it is too small to carry a jacket and a sandwich.....just what a day pack is for. It could use substantial improvements and would help if the design team had ever traveled internationally for longer than 14 days.