For Chanel’s haute couture Spring/Summer 2018 collection, the silhouettes are about spontaneity via dashed-off pastel-themed varieties in passages of Chanel tweeds, chiffon dresses and evening wear ranging from voluminously wide to tiered to perpendicularly slim and narrow garb in aquatic tones, iridescent rainbow palette and scintillating gold and silver veiled with a covering of chiffon.