This is the Short Sleeve Explorer Mesh T-shirt. It's a functional item made from recycled polyester material with excellent moisture-wicking and quick-drying properties, designed to reduce stickiness and chills caused by sweat. Although it's a size M, it runs large. If the size fits, it can be worn by both men and women as a unisex item. Please understand that it will be shipped folded compactly. How about it for those who are looking for it or like this style? It uses recycled polyester. By using water-repellent polyester yarn on the skin side that does not retain moisture, it suppresses stickiness and chills caused by sweat. The surface is a smooth polyester knit with quick-drying properties. It quickly wicks away sweat and diffuses it, reducing sweat return. It has UV care (UPF15-30, 85% or higher UV cut rate) functionality. It is treated with Polygiene processing, which suppresses the growth of bacteria attached to the fibers and reduces odor caused by sweat. With patch pockets and a print on the front, it's a playful item that also offers functionality for summer alpine climbing, camping, and other outdoor activities. Size notation: M (Actual measurements) Shoulder width: approx. 48 cm Body width: approx. 52 cm Length: approx. 68 cm As this is a used item, please understand that there may be overlooked signs of use, scuffs, scratches, or dirt before purchasing. Please refrain from purchasing if you are sensitive. Returns and exchanges are not accepted.