Versatile and lightweight rucksack ideal for backpacking and mountaineering the osprey ariel 65l rucksack is a good sized pack stuffed with technical features designed to improve functionality and carry comfortr r constructed with a womens specific fit the ariel is adept at managing extra heavy loads and keeping them secure and easy to carry the antigravity back system allows for constant ventilation whilst suspending the bulk of the pack away from the back various compression s