Thank you for looking. This is a down jacket, the "Ramche Mountain Reflect Down Jacket," from the British outdoor brand "Berghaus." I purchased it new as a spare down jacket and have kept it stored in a dark place without using it. I am currently using the same jacket for winter mountain climbing as a warm layer and for town use. It uses Hydrodown 700FP, which is resistant to moisture, making it ideal for cold and wind protection. The size is M in Asian sizing. It fits me perfectly; I am 170cm tall with an average build. Please note that from the time of purchase, there were stains or dirt-like marks on the chest and shoulder areas. They may come off with washing, but I am unsure. Please check the photos for the condition. I am a non-smoker and do not own pets.