The official performance dress shirt of the Arrow McLaren IndyCar Team, the Apex combines cutting-edge engineering with refined style. Featuring proprietary CoolFiber™ technology, this shirt delivers a cool-to-the-touch sensation and exceptional breathability for all-day wear. Four-way stretch fabric provides unrestricted movement while maintaining a tailored silhouette, while the ultra-soft construction ensures comfort from morning to evening. The firm spread collar with integrated stays keeps your look crisp and polished, no matter the occasion or activity level. CoolFiber™ Technology Moisture-Wicking Breathable 4-Way Stretch Heavenly soft for all day comfort True to size 76% Nylon, 24% Spandex Machine wash delicate, Hang dry