New, Unused, Unopened UNIQLO HEATTECH Extra Warm Mock Neck T-shirt Inner surface: 100% Cotton Plus Size Sold Out Item 1.5 times warmer than regular HEATTECH. The inner side that touches the skin is 100% cotton. Mock neck design is perfect for layered outfits. Comfortable to wear with stretchability, suitable for golf and other sports. Unopened, stored item. Size Length: 74.5cm Shoulder width: 43cm Width: 54.5cm Material 52% Cotton, 41% Acrylic, 7% Polyurethane Care Instructions Machine washable, use a net, do not dry clean, do not tumble dry Color: White系 (White-based)