There's a good reason this timeless style has endured so long and experienced a revival over recent years - and that's its versatility. While some heels are a little more difficult to style on a casual, day-to-day basis, mules are perfect for pairing with everything from jeans to dresses. The variety of heel shapes and heights available also gives you the flexibility to choose whichever silhouette feels most comfortable for you while never compromising on chic-ness.