NWT Keen Winterport Neo DT Waterproof Boot Size 8 Steel Gray Brilliant BlueA high traction sole and waterproof upper add to the weather-ready style of this thermal lined weather boot.Multi-directional lugs for increased traction200g of KEEN.WARM insulation rated to -25˚F/-32˚CKEEN.DRY waterproof, breathable membraneLace-lock bungee system with adjustable hook-and-loop strapEco Anti-Odor for natural odor controlEnvironmentally preferred premium leather from LWG-certified tanneryMaterialWaterproof leather and textile upperHigher-traction rubber outsoleFleece lining for warmthThermal Heat Shield insole captures warmthTechnologiesKEEN.DRYA proprietary waterproof, breathable membrane that lets vapor out without letting water in.KEEN.WARMOur signature insulation is extremely compressible and light for the foot warmth it provides, and it retains its insulating ability, even when damp.Thermal Heat Shield FootbedA tri-layer footbed used in KEEN.Warm insulated work boots that captures warmth and provides underfoot comfort.