The Sport Master GORE-TEX® is designed with an IN-style construction, to be worn inside trousers for an extremely streamlined look.The waterproof, breathable GORE-TEX® membrane makes it suitable for all weather conditions.The Axial Distortion Control System guarantees protection for the ankle and foot, with an articulated structure that acts as a support for the joint, guiding it in all its movements and preventing dangerous sprains.