This is an American military ECWCS Polartec fleece jacket. Highest quality Polartec 300. This is the ECWCS Gen2 Polartec Fleece Jacket from the American military, representing modern military wear. ECWCS (Extended Cold Weather Clothing System) is a cold weather clothing system developed by the American military. It was developed to adapt to various regions by combining different layers depending on the climate conditions, making it a modern military system. This fleece was developed as one layer of the layering system and is characterized by being surprisingly light and warm. The Gen2 is characterized by its thick fleece material and excellent ventilation function. There are zippers under the arms, and the front zipper is also a double zipper. The fleece is thicker, tougher, and warmer compared to Gen3. It can be worn as an outer layer on its own. Size: Length: 70cm, Width: 57cm, Sleeve Length: 84.5cm