The CASCADE size 8.5 They feature 3D molded foam collars for additional ankle stability, TempSens technology in the lining for constant comfort, UltraDry™ waterproofing for protection from the elements, and best-in-class slip and oil resistance from the Vibram® Bayu rubber outsole with TC-4 Plus compound. features: ENERG Strategically placed high-rebound material brings high-end athletic shoe technology to more practical applications, burst of energy with every step. HRO Soles that have been designed and tested to perform on high heat surfaces. VIBRAM® OUTSOLE Vibram® outsoles offer excellent traction and high abrasion resistance in a multitude of environments. ULTRADRY™ WATERPROOF Our UltraDry™ construction combines a moisture management lining with waterproof components for dry, long-lasting comfort and performance. CUSHIN™ CuShin™ Comfort tongue technology was designed to minimize pressure some feel on their shin from the top of the boot tongue. TEMPSENS This technology reacts to your body temperature and sweat level to keep you dry and comfortable. When you're hot, this innovative Swiss technology cools you down by vaporizing moisture and removing body heat. And if you're chilly it retains your body heat to keep you from getting too cold SLIP RESISTANT a certified whole shoe test method.