The Official Performance Dress Shirt of the Arrow McLaren IndyCar Team.  The Apex Performance Dress Shirt is crafted with proprietary CoolFiber™ technology and engineered for a cool-to-the-touch feel and superior breathability. A four-way stretch fabric ensures full range of motion without compromising on a tailored silhouette, while its ultra-soft feel delivers all-day comfort from start to finish. The firm spread collar includes integrated collar stays to maintain a crisp, structured look—no matter how hard you push. This isn’t just a dress shirt. It’s gear. CoolFiber™ Technology Moisture-Wicking Breathable 4-Way Stretch Heavenly soft for all day comfort True to size *Model is 6ft, 170lb, 15.5 neck size, 32 waist, wearing a size medium