Mack Hollins dressed as Fred Flintstone when he arrived at Highmark Stadium for the wild-card playoff game Sunday. What better garb could there be for a guy who goes barefoot?

Before the game, the Bills players made their way into Highmark Stadium amid the snow and ice. One player caught attention ...

Much like the iconic caveman from Hanna-Barbera's The Flintstones ... He completed the outfit with a Buffalo Bills-branded furry horned hat. This isn’t the first time Hollins has turned heads ...