Osprey are experts at designing technical packs which offer incredibly versatility across a wide range of activities and terrain types the exos rucksack is a 48 litre top loading pack designed specifically for super light backpacking and thru hiking it features an airspeed sl suspension system which blends a peripheral 6067 aluminium alloy frame with an internal suspended cross strut to provide excellent load carrying supportr r an integrated flapjacket closure system allows you to removabl