The "Hanna" Professional Clog features an easy-to-clean synthetic upper. The aero cushion/memory foam insole and lightweight construction offer superior comfort. The steel shank provides arch support while the enhanced toe room allows for added comfort. The leather-lined heel construction enhances durability. For added stability, they also feature a US Certified Slip-Resistant outsole. Slip-resistant outsole Aerocushion/Memory Foam Insole Leather-lined heel construction enhances durability Lightweight construction offers superior comfort Enclosed toes and heels meet workplace standards Enhanced arch support adds to the comfort Easy to clean synthetic upper