FORTRESS Michelle Leather Stacked Heel Mules Our favorite slip-on, everyday mule, with a leather-wrapped wooden heel that adds the perfect amount of height. This classic silhouette takes you from office to off-duty and is handcrafted with silky-soft leather. Handmade in Peru. Heel Height 2.0" Materials Upper: leather Insole: leather Outsole: leather Heel: leather-wrapped wood with rubber cap