NEXGRIP has quickly become one of our customers' favourite winter boot brands, and Ice Lylia has been no exception. This tall boot style features an inside zipper that helps get them on and off. They are warmth rated to -35°C (take that with a grain of salt, as it will depend on several factors including your socks, your circulation, and your activity level to name a few). The uppers are made of waterproof leather, and the outsole features NEXGRIP's exclusive metal cleat under the heel and anti-slip rubber under the toes combination. Both of those help provide excellent traction in icy winter conditions.