Sports Compression Sleeves Upper Leg strengthen the muscles of the thighs with strong compression. The compressive effect is based on medical standards, i.e. it decreases from the knee to the thigh. This promotes blood circulation. The muscles are better supplied with oxygen, remain more efficient and regenerate more quickly. Due to the stimulated blood circulation, the thigh muscles also warm up quickly and are thus better protected against injuries. They are washable at 40°C. To select the right size, bend the leg at 90° and measure the circumference of the thigh at knee bend height. Also, the circumference is measured one hand width below the crotch and the length between these two points.