What do the people who work at McDonald's wear? I swear I've never even looked. I feel like I can recall a visor with the golden arches on it, and maybe a polo shirt—red, or black? Honestly, I can't even imagine caring.
Nonetheless, McDonald's is compelled to occasionally roll out new uniforms for their employees, lest someone malign their fashion aesthetic while ordering a 20-piece box of McNuggets. So in 2017, you can expect to start seeing... this.
Drab, gray, geometric: This is the future of fast food, and you better be lovin' it. Please do not point out how similar these threads are to the stuff worn in dystopian science-fiction and horror films for the last half-century or so.
On the "bright" side, bet that color really hides the inevitable grease stains.