The Easy Shirt in Black Double Weave Gauze from Naked & Famous, Montreal Canada. 

Details
The Double Weave Gauze Slub is a double-layer lightweight cotton fabric. The slubby yarns give it texture, and the loose, open weave makes the cloth airy and provides its drape. 

The Easy Shirt is a relaxed-fit long sleeve shirt with back pleating and a classic button-down collar.

• Japanese Fabric
• 100% Cotton
• Made in Canada
• Fits true to size