Design: Waterproof leather upper for a comfortable, durable fit Premium upper of rich, supple leather for a luxe look and feel Lace-up style with metal eyelets Heel pull loop for easy on/off In-Shoe Comfort: 100% recycled polyester waffle knit lining 30% recycled MAX-COMF sole technology features a dual-density foam bottom with a cushy footbed providing instant step in comfort, and a thick responsive midsole for lightweight support and stability 30% recycled EVA midsole provides maximum, lightweight comfort Durability & Traction: Rugged Spider Rubber outsole provides reliable traction and durability Additional Details: Leather sourced from tanneries certified by Leather Working Group, whose mission is to promote sustainable and appropriate environmental business practices within the leather industry Treated with Life Natural, a responsibly sourced peppermint-based antimicrobial that fights the growth of odor causing bacteria