Thank you for viewing. This item is an outer shell jacket from Mammut, a top-class Swiss brand for mountaineering and outdoor sports. By the way, the English name is: Alto Light HS Hooded Jacket Men I purchased it new about a year ago from a major mountaineering shop for approximately 35,000 yen. I have never used it. Therefore, the tags are still attached. The size is Euro M, which is Asian L. You can find detailed product information on the Mammut website or Amazon, which is very easy to understand. Personally, I recommend it because it's lightweight, versatile, and has excellent waterproof performance, and the best feature is the zippered ventilation under the arms! Of course, I think it's stylish for casual wear as well. The reason I'm selling it is because I received a similar outer jacket for Christmas. Thank you. Size...L