Bestselling Thor II GTX is prepared for all your outdoor adventures. Wrap-around comfort and stability from Stability+ technology offers more support with every step, while FreeSole adds more power to your walk through its rebound technology. Breathable waterproof GORE-TEX product technology keeps you dry, fresh and comfortable all-walk-long. Also featuring a dual fit, this style has a 2mm foam removable insole underneath its top insole, which when removed helps to offer a roomier fit. Its sports-inspired high-cut back holds the foot, working in harmony with the extra cushioning from the padded collar and tongue, while the long lace adjustability helps a secure fit.