This is guaranteed authentic as it was purchased at the Moncler authorized store in the Isetan Men's Building in Shinjuku. It's a beautiful item with few times worn, and while there are no noticeable stains or damage, it does have a noticeable amount of pilling, which is a characteristic of the product. Please refrain from purchasing if you are concerned, as individual perceptions may vary. Marked Size: S Flat Measurement * Shoulder Width: Approximately 44cm * Length: Approximately 67cm * Width: Approximately 52cm *Please note that there may be some errors due to amateur measurements. I will include shipping this time, so please consider purchasing.