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® insert sole for comfortable, breathable wear On Steam® 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