Y-3 enlists Alpha Dia as the star of its spring-summer 2019 campaign. The top model joins Marland Backus for the occasion. Meanwhile, Angelo Pennetta photographs the advertisement. Taking to a Los Angeles shipyard, Alpha poses in black and white fashions styled by Haley Wollens. The sporty pieces are the result of designer Yohji Yamamoto's obsession with "air between the body."