Insulated for winter comfort, these Nubuck work boots are built to last. Durable Nubuck waterproof leather upper. Seam seal construction helps keep feet dry and comfortable. 400 grams 3M Thinsulate(TM) Ultra insulation. Vibram(R) lugs are angled to provide substantial edging capabilities on both ascent and descent. Steel shank for added stiffness and torsional support. Polyurethane midsole. Antique brass non-tarnishable milled studs and eyelets. Heavy duty waxed laces. Medium width.