ThermoBall Microbaffle Bootsie II Performance Snow Boots A stylish faux fur collar also lends extra warmth to the ThermoBall Microbaffle Bootsie II from The North Face, while a manmade mudguard protects from inclement elements. Boot shaft circumference: 12½ inches Boot shaft height: 7½ inches Faux fur collar Ice Pick Technology Injection-molded EVA outsole with IcePick® temperature-sensitive lugs Manmade mudguard OrthoLite® Footbed OrthoLite® ReBound footbed PrimaLoft® Insulation PrimaLoft® ThermoBall insulation Pull-on entry ThermoBall Water-resistant Style Number: NF0A2T5JNSX The North Face ThermoBall Microbaffle Bootsie II Performance Snow Boots in Shiny TNF Black/Smoked Pearl Grey | Women's Boots NF0A2T5JNSX