I bought thin, mesh-like sweaters in sizes 80 and 100 at Nishimatsuya because I wanted to do a matching outfit with my brothers. They were tighter than I expected, and since I bought the smaller size for my younger child, they were only worn for one day. I think they would be just right for slim 80 and 100 sizes. [Comfortable to wear] Long sleeves, perfect for the cold season. I think they can be worn until early spring. [Stylish design] The navy color is easy to match with any style, giving a simple yet fashionable impression. - Color: Navy - Material: Rib knit - Design: Long sleeve Thank you for looking.