leather sole Product Size: Fit true to size for most standard US size Material: 100% Handmade Leather + 100% Durable Anti-slip Rubber Sole Made For Comfort: The comfort insole features patented moisture control for breathable, all day wear. Attention To Detail: Hand-sewn from one piece of leather that wraps around your foot for seamless comfort. Everyday Essential:The tailored lines of our handcrafted classic penny loafer make it a wardrobe staple that will never go out of style.