New, Muji (MUJI) Organic Cotton Double-Brushed Smooth High Neck Long Sleeve T-Shirt ・Size: 150 ・Color: Ivory I think it would also fit a women's S size. It's a simple high-neck shirt, so it's suitable for both boys and girls. Made of 100% organic cotton, it's also recommended for children with sensitive skin. The double-brushed smooth fabric has a soft and gentle feel, and it seems warm. I think it can be worn for cold weather protection. The size was outgrown before it was worn. It has been stored at home. Please understand this before purchasing. Please refrain from purchasing if you are concerned about minor details. #MUJI #WinterClothes #HighNeck #ColdProtection #100%Cotton #OrganicCotton Neck: Turtleneck Sleeve Length: Long Sleeve Pattern/Design: Solid