This is a Jamie Sadock sleeveless 1/4 zipper front collar shirt, size small. I removed the neck tag at one time, but the shirt is a Jamie Sadock. The shirt measures as follows: top to bottom measures 24 inches, underarm to underarm measures about 16 inches. The material reminds me of a crepe material, but soft. Nonsmoking and no pets. This is one of several golf shirts I have listed.  Thank you for looking.