Details Osprey Ariel Pro 65 Trekking Rucksack - Women's Very light for the size, the Osprey Ariel Pro 65 rucksack is also designed to be incredibly tough, for carrying big loads on long treks into the wilds, or high altitude mountaineering where you need your pack to be reliable but not weigh you down. The back system is fixed in length - this saves weight and means there's less to go wrong - instead of adjustment the bag is available in 3 different back lengths. Zips are kept to a minimum (these are a notorious weak point) with just one on the lid pocket and one on a side pocket. Despite the low weight, the Ariel Pro 65 is a very well featured rucksack. Should you need to save more weight you can strip it right down, removing the hipbelt pockets, lid and many extraneous straps. _ SizeWeightVolume XS 1630g 62 Litres Small 1690g 65 Litres Medium 1750g 67 Litres Weight: 1690g (Women's M) Dimensions: 83 x 41 x 36 cm AirScape™ mesh covered accordion foam backpanel for comfort and fit Compatible with hydration bladders Clip in point for attaching an Osprey Daylite rucksack (sold separately) FlapJacket™ top cover for use without lid Internal top load compression strap Large removable hipbelt pockets, one zipped and one cinch closure Removable floating lid with spindrift collar Removable side compression webbing Removable sleeping pad straps Chest strap with emergency whistle Stow-on-the-Go™ trekking pole attachment Stowable twin ice axe loops Underlid rope carrying system Main Fabric: NanoFly® 210D Nylon X 200D UHMWPE // Specifications Ariel Pro 65 Trekking Rucksack - Women's