This is a thick, warm short-sleeved top from sacai. I have no idea what season it's meant to be worn in. You might be able to wear Uniqlo's Ultra Warm innerwear underneath. I suspect the owner probably didn't know how to wear it either, and hardly wore it. It's been left untouched. It's been stored in a closet with 24/7 climate control. Hopefully, someone can take it off my hands soon. Size: M Men's Color: Brown-based mix of various colors. Length: Approximately 70 cm, Width: Approximately 60 cm Shoulder width: Approximately 50 cm Sleeve length: Approximately 27 cm You should probably iron it before wearing it.