THE NORTH FACE ThermoBall Utility Mid Waterproof Boots Black Size 8.5 The ThermoBall Utility provides the proven protection of a winter boot from The North Face® and a modern feminine aesthetic plus it?s enhanced with ThermoBall insulation for increased warmth. Waterproof BLC-compliant nubuck and suede leather Water-resistant baffled 100% recycled P.E.T. ripstop shaft detail Injection-molded waterproof TPR shell Durable TNF Winter Grip® rubber outsole IcePick® temperature-sensitive outsole lugs for increased traction Very good condition