EFFECT: STOX Energy Socks contain compression. This improves blood circulation in the legs. This speeds up and improves the recovery process. COMFORTABLE FIT: These socks are specially designed for recovery after exercise. The sock has a seamless design and an ultra-thin footbed. SUPERIOR QUALITY: STOX Energy Socks are premium compression socks made of high quality and durable materials. Pressure class 2 Compression (23-32 mmHg). 100% Made in Italy. WARRANTY: 30 days money back guarantee and free shipping on all orders. Already more than 350,000+ satisfied users. Rated 4.6 out of 5 on Trustpilot based on 14,000+ reviews.