Osprey Women's Aura 50 AG Backpacks The adjustable harness allows the user to easily adjust the torso length of the pack by using the easy release cams behind the harness yoke The Fit-on-the-Fly hip belt pads extend 5"/15cm to accommodate different hip sizes providing a custom fit. Product dimension: 14W x 13D x 30L inches The floating top lid can extend to accept oversized loads or can be removed from the pack body for weight saving lidless use An internal reservoir sleeve is located in the main body of the pack allowing easy loading/unloading of a hydration reservoir Osprey's Stow-on-the-Go trekking pole attachment is designed to quickly attach and carry trekking poles while wearing a pack