I'm selling this because I haven't had the chance to wear it much. It's a thin, summer-weight shirt, perfect for this time of year. US size S, which is a Japanese size M. As you can see in the photos, there's a little bit of scuffing. Long-sleeved black T-shirt, made of 87% polyester and 13% polyurethane for a comfortable feel. - Brand: Tesla - Size: S (USA) / S (EUR) / M (Japan) - Material: 87% polyester, 13% polyurethane - Color: Black - Design: Long sleeve Thank you for looking.