HEATTECH material striped long-sleeved cut-and-sew shirt, size 100. It's a HEATTECH turtleneck. It's thin, so it was easy to layer. - Brand: UNIQLO - Size: 100 - Material: 54% polyester, 39% cotton, 7% polyurethane - Design: Striped - Model name: HEATTECH Thank you for viewing.