It's very beautiful, but the size is unknown because the tag has been cut off. Please refer to the following: Measurements are approximate due to amateur inspection. Shoulder width / Body width / Sleeve length / Length Shoulder width: 48cm Body width: 53cm Sleeve length: 63cm Length: 76cm This is a training T-shirt adopted by the US military, made of quick-drying, comfortable polyester fabric. The fabric regulates heat and sweat released from the body, providing a comfortable feel regardless of the temperature. It's very soft and has a good texture. The mock neck neckline gives a neat impression even when worn alone, and also gives a sense of elegance. It can also be worn as an inner layer, and the neckline is well-balanced, allowing for a wide range of styling options! The front features the ARMY logo, and the back has a reflector print of a broken pyramid shaped like the letter "A" of ARMY, increasing visibility during nighttime or early morning training, cycling, or motorcycling. (This product is a USED item. The reflectivity of the reflector may have decreased.) It has a tubular construction, with the body made from a single piece of fabric, eliminating side seams to reduce stress on the skin. Because there are no seams on the sides, the T-shirt doesn't touch the skin, which is a benefit for comfort.