Walking in extreme heat conditions is now possible. The rubber material of The Slipp-R is tested to 150°C or 305°F which means you don’t need to destroy your outer shoes working on hot, gooey surfaces. It also means you are insulated so your feet will stay cooler, longer. The Thermal Resistance qualities of The Slipp-R are astounding! Ask about The Slipp-R’s Electric Shock Resistance too.