New Without Tags Brooks Brothers Blue with White Check Supima Cotton Oxford Cloth Button Down Shirt.  Crisp high quality fabric.  Made in USA.  Regent, which is Slim Fit. Some have tags, some don't, so all are being sold as without tags.  Some have a Sharpie mark on size label.  Retail $140. 

This is the current model, featuring an unlined collar and mother of pearl buttons. 

Measurement across chest at armpit level by neck size:

14.5   20 inches

15      21

15.5   22

I combine shipping.