100% cotton Shoulder to bottom: almost 22.5” Side to side: around 12.5” If I remember correctly this was a handy down from my sister. She had it for some time before giving it to me. She gave this to me when I went on to high school. I believe I took a year book picture with this same exact shirt lol. So yeah it’s been through two owners already. This stopped fitting me long ago but it’s been in the back of my closet. It has deodorant stains under both arms as I displayed in the pictures. It also is starting to display slight yellowing in the white back strip around the neck area. The logo is still good and the color is still vibrant as it used to be years ago.