This cozy winter boot is crafted from quality Italian craftsmanship to deliver superior comfort and warmth. It features a side zipper for an easy on-and-off and a BREATHTEX waterproof membrane to ensure a dry fit. A lining enhanced with breathable insulating OLANTEX film and an ISOWARM insole made of 90% wool with insulating and reflective silver foil keep feet in warm cushioned comfort. A blend of wool, polyester and imitation fur enhances warmth and breathability while a mid-sole guarantees impact and compression resistance. An Italian sole is reinforced at the bottom of the rod for heel and toes. It features 16 stainless steel spikes, built-in swiveling and folding OC System® with flow channel to deliver secure non-slip grip and traction. Upper material: Polyamide and polyurethane with padded padding upper Lining material: Wool lining and OLANTEX breathable insulating film Heel Height: Approx. 2 inches / 5.08 cm Shaft Height: 7.75 inches / 19.68 cm Circumference: 19.5 inches / 49.53 cm Temperature rated up to -30°C. OLANTEX MEMBRANE The Olantex membrane is one of the first and most used Olang's tecnologies available in several models of both winter and trekking/outdoor collections. The material of the membrane makes it water plus abrasion resistant and breathable, bringing out comfort and lightness. OC SYSTEM The system features stainless steel studs and a framework created with a special, flexible polyurethane that is durable even at the most extreme temperatures. OC SYSTEM works in two positions: grip on / grip off. The OC SYSTEM KEY makes it easier to flip the position on and off. BREATHTEX This membrane maintains the special skills of the Olangtex boosting the water resistance. Breathetex gives the maximum freedom of movement, comfort and lightness. Free Shipping on all orders over $100 and a 30-Day Returns policy.