Acrylic Fibres. Therapeutic Effect: These socks provide graduated compression from the ankle to the upper calf, offering support that promotes blood circulation and helps relieve tired, aching, and fatigued legs. Ideal for use during long flights and for managing mild swelling or discomfort in the legs and feet. Beautiful & Comfortable: Made with fine yarns for a sheer, attractive appearance and a soft feel that ensures all-day comfort. Using specialized manufacturing equipment and high-quality fabrics, these durable compression calf sleeves are designed for therapeutic comfort suitable for both men and women. Suits Your Activity: Compression hosiery helps stabilize muscles and reduce discomfort during physical activity. Suitable for running, hiking, volleyball, basketball, cycling, baseball, yoga, workouts, and other fitness activities. Also appropriate for everyday wear, including during pregnancy or occupations requiring prolonged standing, as well as air travel. Graduated Compression: 20-30 mmHg graduated compression delivers maximum pressure at the ankle with gradually decreasing pressure up the calf, aiding blood flow back to the heart. Helps manage symptoms of minor leg strain, varicose veins, shin splints, and restless leg sensations while supporting overall leg circulation and comfort.