Features: Adjustable torso with 3.5" of customization for a precise, supportive fit FreeFloat dynamic hipbelt flexes naturally with your body's movement 3D-designed hipbelt conforms to your shape for padded, load-friendly comfort Full-length tensioned mesh backpanel promotes airflow and heat escape Perimeter frame engineered with tension and compression for stable, flexible load support Extra-large hipbelt pockets keep essentials secure and easily accessible Lifespan-foam shoulder harness with perforations for long-lasting comfort and ventilation Main U-Zip opening provides wide, convenient access to the main compartment Hydration sleeve with SpeedClip hanger compatible with Gregory's 3D Hydro reservoirs (not included) Top zippered pocket with reflective attachment points, key clip, and underside security pocket Dual side stretch mesh pockets with pass-through for over- or under-compression Front stretch mesh pocket with durable fabric panel and secure buckle closure Adjustable attachment loop and upper shock lock for trekking poles or an ice axe Custom ComfortGrip molded zipper pulls for ease of use Quick-pull drawcord closure with top webbing compression for load stability