The ultra-comfortable AMP insole in the Georgia Boot Men's Carbo-Tec FLX Alloy Toe Pull-on with InsulKul Work Boots is enhanced with InsulKul, keeping feet cool when it's hot and warm when it's cold. The dual-density EVA and Carbo-Tec rubber outsole delivers excellent abrasion, chemical, heat, and slip resistance for the toughest jobsites.