The original CamelBak product, continuously improved and upgraded, then battle-tested by hundreds of thousands of troops worldwide. Includes 100 oz (3 L) Mil Spec Antidote Reservoir Long with Quick Link. 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 the Quick Link Exit Port and QL HydroLock Bite Valve Adapter: tube clicks off for faster refilling with auto shut-off; new Fillport: industry's largest opening with air-light 1/4 turn open/close for quick, secure seal that can't be over-tightened; lighter-weight, lower-profile design. Quick-release shoulder straps unclip for easy removal and storage inside back panel stash pocket, Use D-ring attachment points to add to any armor vest or pack with MOLLE, Fully-insulated reservoir compartment using 7 mm closed cell foam, Add or remove name tags and unit badges quickly with integrated hook-and-loop, External fill for rapid refill without having to remove reservoir from pack, 500D Cordura Fabric.