Donald Glover.

If any man is a walking, talking, acting, rapping example of how to look good without fully suiting up, it’s Donald Glover (aka Childish Gambino). As well as nailing the open-necked look, Glover has frequently shown he knows how to make the colour of his under-layer work to complement or contrast his tailoring. His blend of traditional and modern influences really give him a distinguished and timeless Style beyond his years.