Genuine Grip Footwear Men's Slip-Resistant Oxford Work Rubber Sole Rubber sole Patent-pending, Genuine Grip, slip-resistant rubber outsole delivers superior traction to help keep you steady on your feet. Removable, Walking On Air polyurethane insole helps to reduce leg fatigue. Moisture-wicking liner is treated with antibacterial Aegis Microbe Shield for a dry foot environment. Easy-care leather upper is oil and water-resistant. Lace-up closure gives you a customized fit.