Uniqlo and Mame Kurogouchi collaboration item. A simple design black long-sleeved top. Can be used as an inner layer or as a single long-sleeved T-shirt. Both feature unique designs at the waistline and hem. The round neck is size S. The high neck is size M. Please note that the sizes are different. We are not considering selling these items separately. We kindly request that you purchase them as a set of two. Also, although they were sold as items that can be used as inner layers, I only use them as long-sleeved T-shirts.