Balenciaga’s neon-green Square Knife pumps were unveiled in the house’s SS19 runway show, which was inspired by exaggerated silhouettes from the 1980s. They’re shaped with a pointed toe and back, then are set on a pencil-sharp stiletto heel and hot-stamped with a gold version of the logo on the insole. Style them with a slit-hem dress for a confident party edit with a retro slant.