Features nylon C2 (composite construction) suspension system Twin 6005 T-6 extruded aluminium M-bar stays Double chamber top lid for easy gear organization and access Extendable top lid and extension collar for larger loads Hydration sleeve external access point Description Product Description FEATURES of the Arcteryx Altra 85 AR Pack C2 (composite construction) suspension system Twin 6005 T-6 extruded aluminium M-bar stays Double chamber top lid for easy gear organization and access Extendable top lid and extension collar for larger loads Hydration sleeve external access point Double-pull, easy open collar cordlock systems GridLock shoulder straps adjust for both height and width Back panel sits away from back and provides ventilation U-shaped zipper for easy access Large front kangaroo pocket for frequently used items Dual P'ax ice tool carry systems Wingman one-handed easy access pockets Rotating Load Transfer Disc distributes load to hips Stretch Mesh waist belt pockets