Thank you for viewing. This is a 100% wool knit from Brooks Brothers. It's not thick. It feels very soft against the skin. I purchased it locally when I was stationed in Europe, but I rarely wore it and kept it in my closet. - Color: Gray - Brand: Brooks Brothers - Size: S *This is the local size, so I think it's about L in Japanese size. - Material: 100% Merino Wool - Size: Length, Width, Sleeve Length → 65, 53, 63cm (Please forgive any errors due to amateur measurements)