With a name like the Frost GTX Boot, the intended purposefor La Sportiva's latest offering may seem somewhat obvious and you'd be right. Every detail and feature on the Frost GTX is specifically designed tomake this boot perform better in a cold, icy environment. La Sportiva knows you'renot going to let frigid temperatures keep you from getting out and snowshoeingwith your pooch. Besides, if the cold weather is keeping everyone else home,that just means more solitude for you while you're building your snow igloo toescape from the crowds. When we break down the features of the boot, it becomesimmediately apparent that many hours of thought and testing went into theconstruction of this boot. Starting from the inside out we find a wide toebox that caneasily accommodate the thickest winter socks so you're not left choosingbetween having to wear a thin sock or feeling as if your digits are beingsqueezed in an icebox. A Trailon high insulation EVA midsole helps to reduceheat transmission and prevent, as much as possible, heat being transferred fromyour foot to the cold ground. Moving outward we find a Gore Tex insulatedcomfort lining, the warmest liner material that Gore Tex has to offer. For theoutside of the boot, La Sportiva used rubber, nylon, and an abrasion resistantmicrofiber that together provide durable, waterproof protection all day. Last,but certainly not least, La Sportiva added a Vibram Ice Trek sole to providetraction when things get icy, and also to help prevent ice build up on thesoles of the boots.