The AS261 Crane is an outdoor inspired lightweight safety boot with a leather upper and a non metallic anti-penetration midsole. Water Resistant Full Grain Nubuck & Crazy Horse Leather Upper Moulded TPU Heel Chassis to Enhance Support Reflective Laces and Counter Panel for Extra Visibilty Deep Padded PU Collar for Extra Comfort Comfortable, Cushioned and Removable PU Footbed Lightweight Athletic EVA Midsole Enhances all day Comfort and Shock Absorption - Reducing fatigue Quality Rubber Outsole with technical tread pattern to provide excellent traction,durability and wear performance Non-Marking Rubber Outsole Outsole Heat Resistant to 300 Degrees Oil Resistant Outsole