The addition of 18% raw silk to the cotton of this shirt makes it the softest shirt you'll ever own.  And don't worry, it's still totally matte with no shine to speak of. 

FABRIC AND TRIMS: 

• 82% Cotton 18% Silk woven in Portugal by Somelos
• A lightweight, ultra-smooth, and breathable cotton and raw silk blend
• SEASONALITY: Great for warm weather
• HAND FEEL: The addition of silk gives this cloth an ultra-soft and smooth texture. It is still completely matte. The silk does not add any shine to the look of the fabric.
• COLOR: Natural white with gray graph check
• BUTTONS:  Genuine shell buttons in natural