This waterproof leather upper features a nylon mesh fabric lining, steel shank, slip resistant sponge rubber outsole and welt construction. 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. Steel toe meets or exceeds the compression and impact testing rating of 1-75 and will absorb up to 75 lbs. of impact. Electrical hazard tested to withstand applications of 14,400 volts at 60hz for one minute without leakage.