Blundstone XFR safety boots stand on a thicker, grippier, solid rubber lug sole for safe, long-wearing, all-season comfort and stability. Comfort Arch footbeds help to reduce stress on bones and joints, cushioning heel-strike impact by up to 90%.  Steel toe boots with rubber toe caps protect the boot itself and extending service life. A work boot so safe it protects itself! Pull-on work boots that won't let you down. Chelsea boot height. The most comfortable work boot.