For seasons now, power women have had an ally in the gladiator sandal. And for good reason—whether traditional or knee-high, multicolored or solid, the much loved flat is ideal for treading long city blocks. With the arrival of the gladiator heel for resort, it’s time to prep those calves for some serious extension. “Putting this shape up on a wedge plays with proportions and pitch to make it both edgy and flattering,” says Miranda Morrison of Sigerson Morrison. Here, the company lifts the gold-foil silhouette onto a sexy platform. Things are less overt at Marc Jacobs, where a jet-black creation topped with bows and glittering studs straddles the line between sweet and tough. This kitten heel would make even ancient Greek and Roman girls jealous.