The Naot Viento is the perfect mid-calf boot. This style has an inside zipper for accessibility, gore for adjustability. The Viento features padded technical lining providing comfort, warmth & moisture absorption. Naot's removable, anatomic cork, latex footbed is wrapped in leather and molds to the shape of the foot with wear. The Aura Collection features a 1.5'' polyurethane sole which is extremely lightweight, durable, abrasive to prevent slipping. This collection uses a hand-sewn stroble construction making it strong and extremely flexible.