Purchased over 10 years ago, likely from the official online shop. It was mostly unworn and kept in storage, but I'm selling it because I've outgrown it. The material and design allow it to be worn as either an inner layer or an outer layer. *Note: It has a very tight fit, like a leotard, so it may be difficult for those who are overweight or have increased muscle mass to wear.* A brown undershirt made of 95% polyester and 5% spandex, size M, Made in Japan. - Color: Brown - Material: 95% polyester, 5% polyurethane (Geoline) - Size: S/M (US/JAP) - Manufacturing Country: Japan Thank you for looking.