Michelin safety shoes are made with high quality rubber outsoles combining both excellent slip resistant and wear qualities. A key comfort feature of the XPX781 is its contoured removable orthotic TPU insole that is excellent for those seeking arch support. The polyurethane material used in its insole is known for its cushioning while not bottoming out features. The rigid TPU material helps provide underfoot support in the arch area. In addition to meeting the highest ASTM F2413 Impact & Compression standards, the Michelin XPX781 work boot also has an ASTM F2413 compliant metatarsal guard helping provide extra protection to the instep area along with the toes. XPX781 also complies with ASTM F2413 Electrical Hazard standards. This type of work boot is made with insulating bottoms providing secondary electrical hazard protection to those areas dealing with open circuits under dry conditions, but also can be worn in work areas requiring only basic protective toe work boots. • Flexible strobel construction • Shock-absorbent phylon midsole • Electrical Hazard Protection • ASTM F2413 protective toe classification • Full-grain leather • ASTM F2413 metatarsal guard standards