Men's Timberland Pro Powertrain Sport SD35 A16NN Work Shoes Our Timberland PRO® Powertrain Sport athletic work shoes offer lightweight performance, but they're all business when it comes to protection. Not only are they tough enough to handle working on your feet all day, they feature alloy safety toes, Anti-Fatigue Technology for all-day shock absorption and energy return, and they are designed for Electro Static Dissipating (ESD) compliance to minimize hazards from static electricity buildup. Their breathable, moisture-wicking linings are made of ReBOTL™ fabric containing at least 50% recycled plastic. Plus, their outsoles are made of heat-, oil-, slip-, and abrasion-resistant, non-marking polyurethane for enhanced traction and comfort.