This is a New Balance thin jersey. It's made of dry-fit material, making it easy to wear for everyday use, running, or walking. The logo is reflective, so it's safe for nighttime use. Size M Shoulder width: approx. 42cm Body width: approx. 52cm Length: approx. 66cm It's only been used a few times, so the condition is good, but please understand that there may be some minor signs of wear.