This is a US military surplus pullover fleece liner used by the Marine Corps. The material is POLARTEC, a high-performance fabric made by knitting polyester fibers using a special technique. It is lightweight, breathable, warm, durable, and has a good feel against the skin. It pairs perfectly with ECWCS parkas and other breathable waterproof material parkas and jackets, such as those made of microfiber, significantly increasing their heat retention performance. It features a long half-zip for easy on and off, and an oversized hand warmer pocket on the front at the waist! Due to its excellent design, it can be used not only as a liner but also as a standalone piece. It offers warmth and functionality, and its lighter texture compared to fleece jackets makes it light and easy to move in, making it suitable for various environments! Size (approximate): Shoulder width: 46cm Body width: 56cm Length: 74cm (back) Length: 69cm (front) Sleeve length: 60cm