Compressport Pro Racing Socks V4.0 (Run) The Pro Racing Socks V4.0 Run is a high-performance technical sock engineered for road running. This fourth-generation model focuses on thermal regulation, friction reduction, and anatomical support through integrated weave technologies. Functional Technology 3D.Dot & Flat.Dot System: A pattern of multi-directional dots reduces slippage within the shoe and provides targeted cushioning. These dots also create "hollow" spaces that facilitate airflow and moisture evacuation. Aero-Efficiency: Integrated ventilation stripes and technical mesh panels extend from the ankle to the toes, ensuring the foot remains dry across various temperature ranges. Acupressure Effects: The textured weave is designed to stimulate blood flow and provide micro-massages during repetitive impact. Stability & Protection: A 360° arch support prevents the fabric from twisting or bunching—a primary cause of blisters. Dedicated padding around the Achilles tendon protects against pressure and friction from the shoe heel. Ergonomic Toe Box: The reinforced toe piece is designed to accommodate natural toe splay, improving stability and preventing "black nails" during long-distance efforts.