The Thrill is a knee-high boot with a wrap around. This style has a heel cup for stability, an inside zipper & gore. This style features padded technical lining which provides warmth and absorbs moisture. The Thrill has a 13.75" shaft. Naot's anatomic cork & latex footbed is wrapped in pampering suede and molds to the shape of the foot with wear. The Eden Collection features a 2.5" polyurethane sole with a metal shank.