Sonia Rykiel - Creative director Julie de Libran looks to the relaxed California coastal vibe for Sonia Rykiel's Resort 2018 collection. This tri-tone sweater is knitted from a metallic-blue, red, and black cotton-blend to a slender silhouette with a round neck and cropped sleeves – perfect for layering over shirts – and is finished with a sculptural knitted hem. Contrast it against lipstick-red trousers for the most arresting take.