The Southern Cross Zip is a 6-inch zip sided and lace up safety boot with a padded collar and tongue for all-day comfort. Lace Up for comfort, then use the side zips for quick access. This Men’s safety boot has been crafted from Sand colored, premium cowhide Nubuck Leather that is Water Resistant. The tough Thermoplastic polyurethane Outsole is heat resistant to 266ºF, combines Electrical Hazard (EH) and Slip Resistant properties, and performs well on below freezing conditions.