The Klimatex COMPRESS 2 knee socks are made using a functional material for fast drying, lightness, and thermoregulation. The special funnel construction ensures varying compression levels. This effectively helps with blood flow towards the heart. The socks improve blood flow in the muscles, oxygenation, decreasing muscle tissue damage and help reduce fatigue. Tested by professional sportsmen. They can also be used as a preventive measure (support of blood flow, minimum shock). If used during races we recommend putting them on about 3 hours prior to the start. For recovering from fatigue the socks should be worn about 3 more hours after the race or until the pain is gone. This model belongs to no.1 compression class (according to the RAL GZ 387 norm, defined by pressure of 18-21mm Hg).