A classic look with some BILLY flair, step into your warm-weather sandals like never before. These sandals are made of faux leather material for durability, and have a rubber outsole with great traction. Customize your fit with an adjustable heel strap. And use the short-wrap zipper for easy-on and easy-off convenience. Enjoy! Upper: Faux Leather Footbed: Faux Leather Outsole: Rubber Heel Buckle: Adjustable.