All comfort. No nonsense. The KorkersA(R) Neo Flex Boot features a vulcanized rubber upper that keeps rain and snow out, along with a 3.5mm neoprene and fleece bootie that delivers all the warmth with none of the bulk of standard insulation. So you can crunch through snow, march through muck and get down and dirty in slush and snow with complete comfort. And while most rubber boots feature a stiff, unforgiving midsole, these feature the crazy-comfortable Cush-Tech premium EVA midsole that provides shock absorption and rebound with every step. 100% waterproof vulcanized rubber construction 3.5mm neoprene bootie with fleece lining for warmth Non-marking Kling-On Grip rubber outsole Cush-Tech premium EVA midsole Stretch neoprene cuff allows for easy slip-on/off Heel kick for easy hands-free removal Comfort rated to -20AdegF Order today!