House Grown Grey Crew
Back in the 1970's & 80's J. Dwight & son House Grown Sapplings and shrubs were supplying the greater west side of Columbus with the finest greenery in the Mid-West. Their legendary Banana trees have spanned generations and have since become a neighborhood staple.
As seen on It's Always Sunny In Philadelphia Season 14, Episode 4 "The Gang Texts"
Mac wears it on his shennanigans around the Philadelphia Zoo.