Medicare Flight Socks in black (medium size) are specially designed compression socks to help reduce the risk of Deep Vein Thrombosis (DVT) during air travel. These socks provide graduated compression to improve blood circulation in the legs during long periods of sitting. Key features: • Graduated compression design • Helps prevent DVT during flights • Medium size in black color • Promotes healthy blood circulation • Comfortable fit for extended wear Flight socks are recommended for passengers on flights lasting more than 4 hours. The medium size is suitable for average adult leg sizes. The black color makes these socks versatile and easy to coordinate with different outfits while traveling. The compression level is designed to be effective yet comfortable enough for the duration of your journey.