This is a gorgeous shirt from Brooks Brothers.

Made of non-iron Supima cotton with a touch of Spandex, it's light blue.

The shirt has a button-down collar, single-button barrel cuffs, slim fit, left chest pocket, and a squarish tail. 

This beautiful shirt is NEW, without tags.  It is a store pull because it is mistagged. It is guaranteed to be unworn, authentic and absolutely perfect.

I measure each item before listing it and the measurements for this shirt are: 

The neck measures 16.5 inches from button to buttonhole.

 The sleeve length is 34/35 inches from mid-collar to the end of the cuff. 

Across the back, laid flat, the shirt measures 22 inches armpit to armpit and 31 inches from the collar seam to the bottom of the back tail.