2 PAIRS OF COMPRESSION SOCKS (20-30 mmHg): We increase the number of pairs without reducing the quality of the product. If one pair is dirty, another pair can be used. .TRUE PROGRESSIVE COMPRESSION: The compression of the socks is gradually reduced from the ankle to the knee (20-30 mmHg). This provides calf support and promotes increased blood flow, leading to increased oxygen flow to the leg muscles, helping to prevent spasms and reduce fatigue. .HIGH QUALITY: Breathable, quick-drying, antibacterial, good elasticity.VERSATILITY: Perfect for sports (running, marathon, hiking, cycling, football, rugby, triathlon), people on the go all day (nurses, teachers, pharmacists, police officers, warehouse staff) And people who steal (reduce the risk of DVT and thrombosis on long-haul flights). .Size: M (EU 39-42), L (EU 43-46).