Mountainsmith Apex 80 Backpack - in stock now. FEATURES of the Mountainsmith Apex 80 Backpack Multi-point ladder adjustment suspension for S/M/L/XL torso range Right side angled water bottle pocket Separate sleeping bag compartment with internal divider TuningFork waistbelt framesheet for form fitting over iliac crest hip bone Forward pull waistbelt with V adjustment webbing Front panel stretch mesh pocket with daisy chain attachment loops PE Framesheet with X configuration AL Stays and horizontal stabilizer bar Anvil Airway ridged EVA backpanel padding Smartphone compatible waistbelt pockets (Fits up to iPhone 6+ and Galaxy S6) SlingShot detachable top lid converts into a lumbar pack