Nike is constantly innovating when it comes to apparel, and "Aeroreact" is the company's latest and greatest when it comes to cutting-edge materials. First introduced in January, Aeroreact is a responsive, lightweight fabric designed to adapt to an athlete's body temperature for ultimate comfort and breathability.
While Day has lately been wearing Nike's blade collars, he'll go old-school at the British Open and wear Aeroreact polos that have traditional collars ($90). McIlroy, meanwhile, will wear the more progressive Aeroreact blade polos ($90). Both golfers will pair their Aeroreact polos with Nike's Flex pants ($110) and Lunar Control Vapor shoes ($175). Day will wear earthy tones all four days at Royal Birkdale, and McIlroy will amp it up a bit with bolder colors, especially with Sunday's laser-orange polo.
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