This is the US Army MOLLE Hydration System Carrier (ACU Pattern), NSN 8465-01-524-8362. It's in excellent condition and includes the water bladder. It's clean, with no leaks, stains, odors, or tears. It's ready for use. I recommend rinsing out the water bladder before use. The plastic around the mouthpiece was slightly removed. The hydration system has a 100-ounce bladder with a drinking tube and mouthpiece. COMPATIBILITY: 100 oz / 3 Liter Hydration Bladder FEATURES - Top carry handle - Plastic ITW Grimlocs for attachment to plate carrier/armor - Shoulder straps with plastic D-rings - Sternum strap - Grommet on the bottom for drainage - MOLLE-compatible webbing on the bottom SPECIFICATIONS Dimensions: Approximate 19.5" x 9" x 2"