Hailey Baldwin is kicking off her 2018 in Miami Beach, and she hit the beach in one of spring's biggest trends. Instead of a typical beach cover-up, Hailey wore a pair of white high-waisted trousers with rainbow stripes down each leg with her pale pink bikini top. Rainbow prints were big news in 2017, but the obsession is set to continue for another season, moving away from jumpers to rainbow-striped tracksuit bottoms. The trend started with Chloé, and now Alexa Chung, Topshop and more have jumped on the trend. Keep scrolling to see how Hailey wore the cheery trousers, and shop our edit of the best around below.