KEEP IT 1000 The Hammer Freezer Boot is built to take on the cold. Featuring high-tech comfort, a carbon toe, waterproofing, and durability, these boots were designed for the hard-core worker who demands support in the most challenging conditions. The Hammer is supported with 1000G of insulation, keeping your feet warm and comfortable. Alongside, the Hammer includes puncture resistance and waterproofing so your feet stay ultra-protected, dry, and relaxed. All of the features work together to provide unrivaled support step after step, every day. SPECS Premium full-grain waterproof leather upper Electrical Hazard Protection Breathable waterproof membrane with moisture-wicking mesh lining Padded Collar with a Leather and Suede Lounge for extra comfort Molded Toe and heel cover for enhanced abrasion resistance 90 Degree Heel for Maximum Stability and Rigidity Flexible Puncture-Resistant Insole Board Removable PUREcomfort Dual-density PU footbed for extra comfort Advanced Flex-welt Cement Construction for extra durability, flexibility, and comfort PU midsole and a Rubber outsole with a Mark II slip rating of .46 Nylon shank adds extra strength ASTM F2413-18 M I/75 C/75 EH rated Carbon toe