This is a gorgeous shirt from Axist.

Made of 100% silk.

The shirt has a square tail with side vents.

This shirt is NEW, with tags. Guaranteed to be authentic and perfect. 

Marked XL.

Across the back, laid flat and unstretched, the shirt measures 26 inches from armpit seam to armpit seam and 31 inches from the collar seam to the bottom of the back.

Please check/know your measurements before buying as tag sizes differ between brands and even within the same brand.