Camelbak Women。HIKING TRAIL HIKER BACKPACK Air Support Back Panel: Designed with body mapping technology to ventilate areas of the body that generate the most heat while keeping load close to your body for increased stability Dual Wing Belt with Cargo: Inner belt transfers weight to hips while outer belt compresses cargo and offers additional storage Adjustable Sternum Strap: Offers a range of adjustments for a custom fit and increased stability Essentials Org Pockets: Keeps your small essentials organized and secure Stretch Overflow Pocket: Quickly stash or shed an extra layer