The Osprey Stratos 50 is an extremely well-ventilated mountaineering backpack. This is due to the so-called AirSpeed suspended mesh back system, which will allow for sufficient ventilation.
Of course, the Osprey backpack has more than just good ventilation. It has several pockets and compartments as well, all of which are nicely divided to keep you organised on your mountain adventure. In terms of compartments, the Stratos 50 has everything you could ever want in a mountaineering backpack. The main compartment is accessed via the lid, the bottom of which is equipped with a zipped mesh pocket. Plus, there are two easily accessible hip belt pockets as well. But thats not all: there are stretch side mesh pockets and a vertical centred zipped pocket for easy access to your belongings. Whats more, the pack has a zipped sleeping bag compartment as well, which can be accessed from the base.
Of course, there are external attachment options as well, including a Stow-on-the-Go trekking pole attachment and an ice axe loop. With the help of the side compression straps, the Stratos 26 can be made more compact or larger. Oh, and theres an integrated and detachable rain cover as well!