Every solder knows that staying hydrated is essential to mission success. The HRT Tactical Zip-On HydroMax Hydration Pack is designed to provide ready access to your water supply without the added bulk of a backpack-style hydration pack.This zip-on hydration pouch features an expandable design so you can carry a 1.5L hydration bladder or 3L Crux Lumbar (neither included with purchase) and still have room for extra clothing and tactical gear. Two outer zippered pockets give you even more storage space for admin supplies and other items.The HydroMax series hydration system is built to Mil-Spec standards using ultra-durable 500 D CORDURA nylon. With YKK zippers and a sturdy hook backing, this plate carrier hydration pack works seamlessly with all HRT Tactical RAC Plate Carriers.