Made in the USA! Leather upper features Dri-Lex nylon lining which has excellent moisture wicking capabilities is long wearing and breathable, a steel shank and a rubber/polyurethane outsole. Electrical hazard tested to withstand applications of 14,400 volts at 60hz for one minute without leakage. Features Poron Permafresh shock absorbing cushioned insoles with anti-bacterial protection. DRYZ technology, an innovative insole system that absorbs moisture and converts it into a dry gel within the insole of the shoe. As a result, the insole absorbs the moisture from perspiration throughout the day, yet remains dry to the touch.