U.S. Army Multicam Hydration Pack W/ Bladder – GRANDPOPSARMYNAVY
File:Camelbak Chem-Bio Hydration Reservoir System.jpg - Wikipedia
Being IET's not bad and all, but having these things on your back while it's blazing outside will make you sweat faster than you can drink water. : r/army
Multicam Hydramax Genuine Army Hydration Carrier w/ 100 oz Bladder
MOLLE II 3L Camelbak® Hydration Carrier, UCP – KommandoStore
Amazon.com : US Army GI MOLLE (100 Oz.) Hydration Carrier with 3L/100 Oz. Bladder (ACU Camo) : Sports & Outdoors