This is a Columbia Omni-Heat quilted jacket. Perfect for camping and mountain climbing from now on. Columbia's Omni-Heat utilizes "thermal reflective insulation technology" based on NASA technology, with a lining of aluminum dots (or gold dots) that reflects and retains body heat, the main feature being that it efficiently keeps the inside of the garment warm. It's lightweight and doesn't take up much space, yet it's very warm, breathable, and doesn't easily get stuffy. It's also popular because it's widely available, from jackets to accessories, and is washable and easy to care for. Main Features: Thermal Reflective Insulation: The aluminum dots on the lining reflect the heat (far infrared rays) emitted from the body and retain it within the garment, providing warmth. Lightweight and Thin: Compared to bulky down, it's thin and lightweight while achieving high insulation, improving ease of movement. Excellent Breathability: While reflecting heat, it also releases moisture and heat to a moderate extent, making it comfortable and less stuffy even when worn for long periods. Unique Evolution (Infinity): The latest "Omni-Heat Infinity" uses gold dots to further improve heat reflectivity and enhance insulation. [Size: Flat Measurement] Size M Shoulder Width: 40cm Body Width: 47cm Sleeve Length: 61cm Body Length: 72cm Material: (Outer Fabric) 63% Cotton, 34% Polyester, 3% Polyurethane (Lining) 100% Polyester Please note that there may be slight variations due to amateur measurements. To facilitate smooth negotiations: Instead of asking "Is it possible to lower the price?", please provide a specific amount, such as "Would ○○ yen be possible?" * We may not be able to meet your request due to shipping and handling fees, but we will do our best. I am unable to answer questions such as "How many times have you worn it?" or "Where did you buy it?" as I do not accurately remember those details. Those who purchase the item will be given priority, even if there are comments in progress. Although I inspect the items, please refrain from purchasing if you are concerned about minor details. Please understand that this is a used item before making a purchase. Packaging: There is a possibility of wrinkles due to folding and compression, so please understand. Please provide your desired price first when negotiating. Feel free to ask any questions(^^) Management Number: J148