Compressive knitted fabric: This activates muscles and provides endurance during physical activity, helping to combat muscle fatigue. Improved blood circulation: By enhancing blood flow, these sleeves can prevent muscle damage and promote faster recovery. Breathable design: The sleeves offer all-day comfort and moisture control, ensuring that you can wear them during extended periods without discomfort. Prevention of friction and abrasions: This feature helps to protect the skin from irritation during movement. With a medium size that fits wrist circumferences of 15.0 – 18.0cm and upper arm circumferences of 27.4 – 33.5cm, these arm sleeves offer a tailored fit for optimal performance and comfort. Overall, the Elastoplast Sport Compression Arm Sleeves seem like a promising choice for individuals looking to elevate their performance and support their muscles during physical activities and sports. (description exceeds maximum possible length)