Think of these as an emergency escape route for your foot allowing for quick, easy access.
Lace up your boots for a secure, comfortable fit then leave the laces tied and use the side zippers to save time; use the side zips to widen the foot opening without unlacing your boots every time you take them off. Steel Blue zips far exceed all tested minimum requirements. They are industrial grade and built to last and a special velcro tab to stop the zip from rattling while working. When you’re on-the-go and constantly in and out of your work boots, the side zip is the only way to go.