This item is made of a knit material with an indigo-dye look, and can be used as an inner layer or as a cardigan in spring and autumn. The size is marked as 46, which is about a size M. Measurements (approximate): Shoulder width 45cm, Length 63cm, Sleeve length 57cm. This item is new and unused, but has been stored at home. Please refrain from purchasing if you are sensitive to this.