Marceline | Slip-On MulesMarceline Slip On Mules That Look Effortlessly Stylish and Feel Good All Day The best sandal is the one you stop thinking about the moment you put it on and Marceline is exactly that. A beautifully designed slip on mule with a refined cage strap upper, a side buckle that lets you dial in a secure, personalised fit, and an easy open back silhouette that makes getting in and out effortless whether you are heading out the door in a hurry or simply prefer