Christian Louboutin Pyra Hallulila Mule pairs waxed calf leather with miniature pyramid-shaped studs and a natural rope sole. This slip-on flat adds artisanal texture and a signature red sole to relaxed, everyday outfits. Key attributes: Black | Waxed calf leather | Slip-on | Flat mule | Miniature pyramid-shaped spikes on upper | Natural rope sole | Signature Loubi red sole | Sleek slip-on silhouette | Dimensions & fit: Runs small — consider taking a half size up for a more comfortable fit. | Composition & care: Waxed Calf Leather | Specialist leather cleaning