It doesn't get any more comfortable with the Thermoball Micro-Baffle Bootie form The North Face®Water-resistant, element-shedding, 100% recycled P.E.T. ripstop shaft. Protective synthetic mudguard. ThermoBall™ offers warmth equivalent to 600 fill goose down without the bulk and heaviness.Plush faux-fur collar for added style and warmth. Cushioned, lightweight, injection-molded EVA outsole. Inset TNF™ Winter Grip® rubber center pod with IcePick® temperature-sensitive lugs for increased traction in winter conditions. Imported. Measurements: Heel Height: 3⁄4 in Weight: 8 oz Shaft: 7 in Platform Height: 3⁄4 inProduct measurements were taken using size 8, width B - Medium. Please note that measurements may vary by size.