- Size: 39-41 - COMPRESSPORT Pro Racing v4.0 technical socks designed for road running - Ultra-lightweight and ventilated fabric that wicks away moisture and prevents overheating - Wider toe box for a natural fit and better ground feel - Specific arch support that promotes circulation and prevents irritation - Terry reinforcement on the big toe for maximum protection on long distances - Double line of 3D.Dots and Flat.Dots on the Achilles tendon for support and ventilation - Advanced cushioning on the sole with micro-stimulation to delay fatigue - Mid-calf length, ideal for road runners seeking comfort and performance - Ergonomic design in blue/white, with rear tab and high-tech details