NEW Official US Army GEN-II Black PolarTec 300 CW Fleece Jacket XL X-Large Made in USA Official US Military Cold Weather Fleece Jacket - Polartec 300 ECWCS. Condition: NEW with Tags in Bag. X-Large size: Chest Over 45". This is an Official US Military Jacket which is Currently Manufactured for the United States Marines, Army, Special Forces and Air Force Soldiers Stationed in the Most Extreme Environments. Collar can be Worn as Turtleneck when Fully Zipped.