Vintage Mens Nutcracker Brand Christmas Denim Button Up Shirt NWT Size Medium

Size mens(?) medium, NWT Nutcracker brand Christmas denim button up shirt. Approx measurements, from underarm to underarm- 20.5 x 29" long It is new with tags, but I did find one small mark on it, located underneath last button, please see last photo. I did not wash this because it has tag attached. From a non smoking home