PREOWNED Official Sports US Soccer Federation Referee Program Shirt Size XSmall Yellow with black stripes. Long sleeve. 2 Velcro breast pockets. Few snags. Black collar with black buttons and black cuff on sleeves. 

 item measures 17.5" from armpit to armpit     item back measures 28.5" from neck hem to bottom         item back measures 30" from folded collar to bottom                                                                                             

Because there is no standardized sizing in clothing, it's highly recommended to use measurements provided and compare to an item you already own for best fit. Please don't go by size tag alone.