Winter warmth doesn't get any more comfortable than The North Face ThermoBall™ Bootie. This baffled, over-the-ankle women's boot is designed with ThermoBall™ technology that achieves the warmth equivalent of 600-fill down, while delivering the wet-weather insulating performance of a synthetic. A water-resistant, element-shedding, 100% recycled P.E.T ripstop upper ensures durable winter wear; a pocket at the side of the boot shaft add eye-catching interest, while the full-length Oso-fleece lining and footbed cover offers silky softness and lasting warmth inside. A synthetic mudguard delivers further protection to The North Face ThermoBall™ Bootie. A TNF™ Winter Grip® rubber center pod in the EVA outsole features IcePick® temperature-sensitive lugs delivers increased traction in winter conditions. An interior gaiter keeps snow out.100% recycled P.E.T. ripstop shaftAdjustable topline with toggle closureApprox. 14½'' boot shaft circumferenceApprox. 8'' boot shaft heightCushioned, lightweight, injection-molded EVA outsoleIce Pick™ TechnologyOrthoLite® FootbedOso-fleece lining and footbed coverPocket detail with snap closureProtective synthetic mudguardRecycled P.E.T.ThermoBall™TNF Winter Grip™ Rubber OutsoleWeight: 8 oz. / 225gStyle Number: CV63T7YView All The North Face ProductsCustomer Reviews for Women's The North Face Thermoball™ Bootie