The Chestnut Bay SkyCool Show Shirt and this shirt is made of the lightest weight fabric. Cooling technology converts sweat into cooling energy so you stay dry and comfortable. Xylitol infused fiber technology for cooling, moisture absorbtion, fast drying, 2-way air circulation and 50+ UV protection. 4-way stretch flat weave fabric offers more stretch and superior comfort. Classic white poplin bib, collar and cuffs lined with unique Liberty® London prints, mesh shoulders, sides and underside sleeve inserts add additional cooling airflow. Pull-over style shirt features a hidden low profile YKK zipper placket and no-show collar and cuff snaps for a polished look.