Acrylic Fibres. Therapeutic Effect: The socks provide graduated compression from the ankle to the upper calf, promoting blood circulation and helping to relieve tired, aching, and fatigued legs. These compression stockings are ideal for addressing varicose and spider veins, providing support during long flights, and managing general swelling or inflammation 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 medical-grade fabrics, these durable and opaque 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. Ideal for running, hiking, volleyball, basketball, cycling, baseball, yoga, workouts, and other fitness activities. Suitable for low or high-impact exercises, aiding in safe warm-up and faster recovery. Also appropriate for everyday wear, including during pregnancy, prolonged standing, or air travel. Graduated Compression: 20-30 mmHg graduated compression delivers maximum pressure at the ankle with progressive reduction up the calf, supporting healthy blood flow back to the heart. Helps manage symptoms of strain, varicose veins, shin splints, and restless leg syndrome while maintaining overall leg circulation and health.