Propet men's Zane work loafers are made of leather and are perfect slip-on shoes for people who spend long hours on their feet. A removable OrthoLite insole adds cushion and provides moisture management. A slip-resistant outsole offers high grip and better traction for all-day wear and support. Shoes have also passed Quarry Tile Testing and got these results: Dry (59), Wet (56), Greasy Wet (36). Material: Leather, Rubber.