Single-sole sandals are pretty much all I want to wear lately. They take a bit of getting used to, since they lack any platform to take the pressure off your knees, but I've convinced myself that it's worth it. They epitomize the sleek style of French women (see how to master it here) and are the perfect finishing touch to my uniform (skinny jeans, slouchy shirt, blazer). I recently bought these Zara lace-up sandals and am really impressed by all of the little details, especially given the price. These Manolo Blahnik heels are similarly stunning, with triangular cut-outs and laces that go up the foot, but I couldn't be happier with my find.