Heat resistant sole with a rubber compound that is resistant to 300°C and a glue that is resistant to 100° C. Heat activated glue WILL delaminate when exposed to fire or heat. (This delam is not covered under warranty.) Designed for forest management work and post fire clean up work. Minimum 8 inch height on all boots meets federal standards for wildland firefighting. IDEAL TERRAIN: wildland fire mitigation and clean up, linesman, backpacking. WEIGHT: 32.1 oz, 910 g LAST: Makalu UPPER: 3mm Idro-Perwanger Roughout Leather LINING: Dry-Best® INSOLE: 8mm MtnFlex with 1.5 mm Dacromet-coated half steel shank MIDSOLE: PU Aircushion SOLE: Vibram Ice-New HRO Test and ISO 20344 Certified