The Alexa Ankle Boot. Durable. Rubberized outsole that does not need to be replaced as often as leather. Functional. Refined zipper and puller tabs with engraved 3.1 Phillip Lim logo. Back pull tab slightly higher for ease. Comfortable. Lightweight and flexible rubber outsole with outstanding shock absorption. More fitted shaft and subtle square toe shape. 100% Cow Leather Rubber Sole