Detroit Pistons guard Langston Galloway is goin' prehistoric with his sneaks on Saturday ... copping a sick pair of Fred Flintstone shoes for his big playoff game!!
TMZ Sports has learned -- the 5-year vet wanted to do something extra special with his Q4 EM-55 kicks for Game 3 of the first round of the playoffs against the Milwaukee Bucks.
We're told Galloway hit up Marcus Rivero -- AKA Sole By Sir -- to whip up a one-of-a-kind pair for the big game ... complete with the orange and black pattern of Fred's iconic outfit.