“THE OCEAN CURES ALL,” reads a watercolor drawing on the Instagram of Mikoh, the cult LA-based swimwear brand hatched by sister duo Oleema and Kalani Miller. It’s an apt phrase, after all, the Miller sisters’ brand is founded upon a lifestyle and love of the sea. Since launching, the Miller sisters have earned a devout following thanks to their undeniably flattering, candy-colored swimsuits that instantly transport the wearer to a tropical paradise–even if they’re roofing it in downtown Manhattan…