This is a 130-size undershirt, perfect for the cold season, made with warm innerwear material. This is one of two shirts, being sold individually. - Size: 130 - Material: 62% polyester, 33% rayon, 5% polyurethane - Product Name: HOT WRAP The fabric is thin, like Heattech, and stretches well. It's black, so I usually dress my child in it like a regular long-sleeved T-shirt. I bought this because I needed a black turtleneck, but I only needed one, so I'm selling the unused one.