Buffalo Bills wide receiver Mack Hollins is known for his quirky pregame routines, and his pregame outfits. The first-year Bill showed up to the wild-card matchup against the Denver Broncos dressed as Fred Flintstone complete with the barefoot look,

Mack Hollins continued to bring his outlandish pre-game fits to Highmark Stadium for the Buffalo Bills' NFL Playoff showdown against the Baltimore Ravens.

Week 13, following a snowstorm in Western New York, he showed up dressed as a mad scientist, and when the Bills faced the Broncos in the wild-card round he came to Highmark Stadium dressed as Fred Flintstone with a Buffalo hat with horns on his head.

Mack Hollins of the Buffalo Bills continues to top himself when it comes to wardrobe. A week after arriving as Fred Flintstone, the wideout/special teams star came to Sunday's Baltimore Ravens-Buffalo Bills playoff game ready for the beach.

Bills WR Mack Hollins was fined for taunting Broncos CB Pat Surtain on Sunday. Denver RB Javonte Williams also received a large fine.

Buffalo Bills wide receiver Mack Hollins has been hit with a hefty fine by the NFL over his on-field behavior. Per NFL Insider Tom Pelissero "The NFL fined #Bills WR Mack Hollins $11,255 for unsportsmanlike conduct (taunting) — stepping over #Broncos star DB Patrick Surtain II last week.

The game time temperature for Sunday night's game in Buffalo between the Bills and the Ravens is set for a freezing-cold 20 degrees—but that didn't stop Mack Hollins from pulling off another one of his fire pre-game outfits.