Noémie Leather Shoes - SilverSole and Heel The outsole of our Nomie Shoe is injected with TR (Thermoplastic Rubber), a lightweight, flexible, and durable material that ensures greater comfort and safety. The stunning heel is crafted in stacked leather with a subtle varnish finish, measuring 2. 4 in in height. It also features a stitched leather welt, which enhances the handcrafted touch and is considered an eco friendly detail, as it reuses leftover leather from the industry.