What better season than resort to build a collection around a bathing suit? Francisco Costa showed not only two-pieces and cut-out maillots—sometimes as layering pieces underneath suits either boxy or slim—but also body-loving, clingy dresses color-blocked in shades of aqua, coral, and cement. Since not everyone is as bikini-ready as his models, there were some billowy tent dresses as well, the best of which came with an icy gray bodice and a shocking pink skirt. Eveningwear fell somewhere between those two poles: A trio of white dresses cascaded to the floor in weightless clouds of jersey and stretch crepe.