The The Carhartt 10" Pac 1000G CT WP was built from the ground up to tackle the toughest of tasks. Let's start from the bottom: the sole offers great traction with a molded TPU heel counter, and is oil, chemical, and slip-resistant. Storm Defender technology serves as a waterproof membrane for breathable protection. A composite toe provides ultimate on-the-job defense. Oil tanned leather is offset with abrasion-resistant PU coated leather. They're treated with 1000 LiteFire insulation, to heat things up. These boots tout no break-in time, and are safety rated for electrical hazard protection.