The north face midcut boots feature a sturdy polyester upper finished with hydroseal membranes for reliable waterproof defence and tnf winter grip rubber outsoles with ice pick lugs that extend as temperatures lower to bite ever deeper into slick ground keeping you moving surely and safely over snow and ice inside is primaloft eco insulation to protect feet against the cold a mudguard resists abrasion around the base and a gusseted tongue locks out stones and other kickedup debris lace the