Description Conquer extreme cold with the Noble Outfitters MUDS Subzero Peak High. Our shock absorbing, dual compound insole keeps feet dry and ache free all day long. With 100% waterproof construction, industrial grade rubber construction, 8mm insulating neoprene, and a warm fleece top layer thereâs nothing that can get in between you and getting the job done.100% Waterproof constructionIndustrial grade rubberReinforced toe and heel counterBreathable 2mm air mesh lining with a warm fleece top layerBest Dang Insoles â Dual compound, shock absorbing, antimicrobial insole keeps feet dry and ache freeDurable slip resistant rubber outsoleIntegrated heel kick for easy hands free removalFinger pull with reflective stripe8mm Insulating neopreneTemperature Rating: Comfortable down to -60 F / -51 C