Tyssedal Mid GTX BOA Warm, sleek and sporty, this technical winter boot delivers everything they need to tackle harsh winter weather. Equipped with Gore-Tex waterproof protection and insulating lining, feet are guaranteed to stay warm and dry. Modern design and durable materials create a snug and supportive fit together with the BOA® Fit System for quick adjustments on the go. The lightweight EVA midsoles will never weigh you down, and high traction rubber outsoles deliver reliable traction.