Dynamic pressure socks, Compression Socks Material: 85% Nylon, 15% Spandex Qty: 2 pairs Size： S / M: calf size 9.4"-11.8" L / XL: calf size 12.2"-14.6" XXL: calf size 15"-17.3" High-quality materials, breathable sweating, and stay refreshing. Four colors optional. Helps to reduce muscle soreness and rapidly recover fatigue legs, promote blood circulation. Protective veins in travel or motion. Open toe and reinforced suture design, beautiful and durable, comfortable. The heel portion enhances the design and extends the product life. Compression Open Toe Socks - Compression open toe socks are made of premium quality medical grade material, lightweight, breathable & durable, sweat-absorbent, anti-slip. we are able to create a high-quality compression sock in a great value. The socks deliver grade 20-30mmgh compression and it will not irritate your skin, they are the best choice for women. Unique Body Ergonomic Design - Compression socks squeeze blood vessels to allow more blood and oxygen to supply muscles, accelerate blood circulation, and protect the skin. This knee high compression socks circulation increases the pressure step by step from the calf to the ankle, reducing the muscle vibration and skin friction to better protect your health. Suitable for All Occasions - This open toe compression socks make the whole calf muscle surrounded by the stepped pressure of the socks, which can relieve the leg fatigue of swelling,keeps joints and muscles in a stable state,allowing you to enjoy life more comfortably.The sleeves have a preventive effect are suitable for runners, athletes, fitness workouts, hiking, tennis, cycling, office workers, airplane travelers, or anyone on their feet all day.