2005, Don't imagine elegant British foxhounds and mounted hunters dressed in their “hunting pink”. South Georgia foxhunts were just a bit different, Paul says. — Paul B Dunn, A Stroll Through Fitzgerald (ThomasMax 2005, p. 42)
(in the plural) The traditional scarlet jacket and related attire worn by fox-hunters.
1965, the open-fronted and unbuttonable surplices worn by Christ Church men in chapel were designed, tradition says, so that hunting pinks could not be concealed beneath them. — Jan Morris, Oxford (OUP 2001, p. 109)