The Parkes Zip is a 5-inch Zip and Lace-up Hiker style work boot with padded collar and tongue for all-day comfort. The Parkes Zip features a TPU Outsole that is heat resistant to 266ºF, includes Electrical Hazard (EH) properties, Slip & Oil Resistant capabilities, and performs well on below freezing conditions. The premium full-grain cowhide Leather is Water Resistant while the Scuff Cap provides additional protection of the leather. All Steel Blue boots feature our famous Trisole which works to cushion your feet, knees, hips and lower back from day-to-day fatigue. All this is backed by our 60-Day 100% Comfort Guarantee. This style is available in Medium (M) and Wide (W) fit options. Steel Blue Parkes Zip Boots are independently certified to major international safety standards and the American Standard ASTM F2413.