SOUTHERN EXPOSURE: Sir Paul Smith will be showcasing collections by three of London’s hottest emerging London men’s wear labels — Agi & Sam, Lee Roach and Craig Green — during Milan Fashion Week. The designers will be showing highlights from their spring/summer 2016 collections on June 22 from 2:30 p.m., and Smith plans to host a cocktail party for the young designers from 6 to 8 p.m. at his showroom on Viale Umbria 95. All three labels are recipients of NewGen sponsorship from the British Fashion Council and have been garnering widespread praise. Agape Mdumulla and Sam Cotton, who design Agi & Sam, have also been mentored by Smith. “As I’ve gained more and more experience, I’ve always tried to give back to the industry,” said Smith. “The event in Milan is a natural progression of this, and the three designers we’re working with are very talented guys, who I think will do well in the future.”