The La Sportiva Men's Ridgeline Work Boots features a heat resistant sole with a rubber compound that is resistant to 482degf and a glue that is resistant to 215deg F. The 8" height provides ample ankle support while the fire resistant laces and exterior threads allow for comformability. FeaturesHeat resistant heel and toe counters for better protection in wildland firefighting conditionsMinimum 8 inch height meets federal standards for wildland firefightingLaces and exterior threads are fire resistant, made from NomexInterior air-mesh liner is highly breathable for long days in the fieldNot intended for front-line wildfire work