This is likely from Maison Margiela, the MM6 line. It's a gray denim blazer-style jacket. The size is 36, which is roughly a men's S-M. The front can be fastened with snap buttons or a zipper, allowing for adjustable opening. I believe it's a unisex item, but please refer to the measurements below. I don't recall ever wearing it myself, so please consider it vintage. Measurements (flat lay): Length: 71cm Shoulder width: 40cm Width: 47cm - Fit Type: Loose Fit (Actually a tight fit) - Color: Gray - Material: Denim - Style: Blazer Style - Pocket Type: Zipper Pocket Thank you for looking.