This is a summer knit from UNIQLO and LEMAIRE. It's a size M, but the fit is on the smaller side. It would probably fit a size S perfectly. There is a small stain in the center of the fifth photo. It's not noticeable when worn, but please refrain from purchasing if you are concerned. Width: 42cm Length: 50cm Sleeve length (from center back): 82cm The sleeves are raglan sleeves, so the measurement is for the sleeve length. It's soft and stretchy.