Derek Lam has been accused of having an obsession with the Seventies. He reflected on that notion for resort, pinpointing 1966, the year he was born, as the real root of his aesthetic. “It was when fashion began moving away from madame couture and toward sportswear with a youthful quality,” said Lam, who focused on “enhancing the body” with architectural cuts and lightweight fabrics. Skinny, flared-leg pants in white denim and plaid created mile-long legs. He kept the baseline silhouettes clean on a white crepe dress and plaid tunic, adding soft but sculptural ruffles to a sleeve or peplum for feminine curves. Also notable were his color pairings, such as sky blue with burgundy on a graphic dress.