Design: Polyester laces for secure closure Durable Italian nappa leather upper In-Shoe Comfort: Waterproof sock system for added dryness Lined with Duca Cor Linza MTP 2.5 Aqua stop to keep your feet dry and comfortable ARNEFLEX(R) insert sole for comfortable, breathable wear On Steam(R) microfiber cover on cushiony memory foam Durability & Traction: Tough Airplay XI outsole with TR, DF 6 for long-lasting wear Spiked bottom for increased grip