Description Product Description RESERVOIR FEATURES: More than just a reservoir, the Mil Spec Antidote Reservoir redefines the ultimate delivery system for an operator's water supply and provides maximum adaptability for changing missions or combat environments. Includes our Quick LinkTM Exit Port and QL HydroLockTM Bite Valve Adapter: tube clicks off for faster refilling with auto shut-off; new Fillport: industry's largest opening with air-light ¼ turn open/close for quick, secure seal that can't be over-tightened; lighter-weight, lower-profile design. KEY PACK FEATURES: Independent Suspension harness and Air DirectorTM Back Panel for optimal load distribution and breathability; Adjustable compression straps for minimum or maximum compression; Lower drink tube exit ports for routing tube under arm; Noiseless zipper pulls throughout; External quick stash pocket; 500D Cordura® Fabric CamelBak® Got Your BakTM Guarantee: If we built it, we'll Bak itTM with our lifetime guarantee.