Opened for photography, but unused. I will send it in a clean bag. This is a button-up top. Size L. It's thin, so you might be cold wearing just this pajama set right now. Made of 70% polyester and 30% cotton, it feels nice to the touch. There is a small, inconspicuous brown stain at the location indicated by the arrow in the photo. Please forgive any loose threads from sewing or folding wrinkles. I will compress it slightly to fit in a post box when shipping. Thank you for your understanding.