The Ariel 65 form Osprey comes in 2 womens specific sizes. Ospey have optamised the fit of the super breathable backsystem, Iso Form hipbelt & shoulder harness to suit the average female body shape. So narrower shoulder width & hip belt positioning, the Iso From hipbelt allows us to fully customise the shape of your hipbelt instore. We would do this buy heating up the hipbelt in a little Osprey oven & get you to wear it until it is cooled, simple but highly effective. These systems all work together to distribute the weight of a heavy pack onto the load bearing skeletal structure of your body putting less strain on your muscular structure for a more comfortable experience and fit. This pack is ideal for multi-day adventures or backpacking your way around the world. There is plenty of space & pockets for you to organise & store your gear; you can even remove the lid & use it as a lumbar pack (a.k.a. a bumbag). The front of the pack has 4 reinforced cord loops for you to attach an Osprey Daylite pack or crampon pocket, front opening for easy access & a stretch pocket for the stowing of jackets & maps. If you dont fill your pack make sure to use the straight jacket compression strap to secure the internal load as noone like as rattly pack & it will stop the contents from shifting & throwing you off balance. There is a built in rain cover that will keep out a good down pour but we would always recommend to out customers that the use of colour coded dry bags is the way forward; not only for peace of mind but also for compartmentalisation & organisation, which is key when on long adventures or when you need to get to your first aid kit or ID documents in a hurry. There is easy access to water bottles in the stretchy side pockets without having to remove your pack & you & quickly store youre walking poles on the move, & the external enter for your hydration system so itss all just that little less fiddly. Osprey have also thrown in walking/ice axe loops & bottom entry for your sleeping system & removable sleeping mat straps. In short this is a stupidly versatile bag you can take almost anywhere. Designed for Women Air Scape backpanel with foam ridges for ventilation Sternum strap with emergency whistle Stretch mesh side pockets with Inside Out compression Top lid access Stretch front pocket Twin zippered hip belt pockets Stow-on-the-Go trekking pole attachment Twin ice axe loops Pre-curved Iso Form CM mouldable hipbelt Removable top lid, converts into lumbar pack Integrated & detachable raincover J-zip front panel access Straight Jacket compression Adjustable torso length Sleeping bag base compartment with internal divider Cord loop accessory attachment slots Daylite accessory compatible External hydration access Internal top load compression strap Removable sleeping pad straps Side compression straps Single aluminium stay