You’ve Seen This Hat. We Know Why. (opens in new tab)

The green and cream cap is everywhere. You can buy one at the Masters golf tournament and at 7-Eleven. The athleisure brand Vuori sells one for $48. So did Andy Roddick’s tennis podcast, “Served.” They were $40 but are now sold out. "In the past couple of years, the two-tone baseball cap has become the red Toyota Camry of the hat market," our fashion reporter Jacob Gallagher wrote. "I saw one. Then I couldn’t stop seeing them." Look at golf brands (Fore All), basketball lifestyle labels (Mond...