KEEN Utility Men's Sparta 2 ESD Aluminum Toe Work Shoe Steel/Grey Built for light industrial work, this aluminum toe work shoe offers a breathable mesh, non-mutilating upper. With a KEEN Utility.ReGEN midsole and a slip-resistant, non-marking outsole, it�s ready to provide all-day comfort and protection. Electro Static Dissipative (ESD) KEEN Utility Men's Sparta 2 ESD Aluminum Toe Work Shoe Steel/Grey