Boreas is a low calf boot with an inside zipper for accessibility. Boreas has a padded heel cup and instep for ultimate comfort. This boot has padded technical lining for comfort, warmth and moisture absorption. The removable, anatomical cork and latex footbed is wrapped in microfiber and leather and molds to the shape of the foot with wear. The Aura Collection features a polyurethane sole with a metal shank which is extremely lightweight, durable and abrasive to prevent slipping. This collection uses hand-sewn Strobel construction making it strong and extremely flexible.