blue-collar

1 : of, relating to, or constituting the class of wage earners whose duties call for the wearing of work clothes or protective clothing — compare white-collar
2 : having characteristics associated with blue-collar workers: as a : having, showing, or appealing to unpretentious or unsophisticated tastes <a new blue–collar serial…woven around a minor-league baseball team — Steven Flax> b : dependable and hard-working rather than showy or spectacular <a blue–collar athlete>