AlphaForce Zipper Composite Toe Public Service BootDurability, safety, and comfort. . . all of these factors were considered when Rocky constructed AlphaForce Zipper Composite Toe Public Service Boots. To create a durably tough exterior, Rocky used full grain leather and 1000 denier nylon (superior strength). A side zipper allows you to easily get these boots on and off. It's covered with a VELCRO strap. While you're on duty, Alpha Force boots keep your feet safe. They have a composite toe that meets