Men's undergarment (nagajuban). It's a shorter length, so it should fit perfectly for people 150-160cm tall, and children can also wear it. The size is as shown in the images. Used a few times. A collar is attached, so you can wear it as is. * The base of the sleeves looks a little dirty when held up to the light, but it's not noticeable under normal viewing conditions (see image 5). If you have any requests or questions, feel free to comment m(_ _)m