The Incrediwear Travel Socks are designed for long days on your feet or travel. Using Incrediwear's semiconductor technology, these are great for days when you are on your feet for long hours, holiday travel, flights, long car rides, and more. Incrediwear's signature fabric blend is embedded with semiconductor elements to provide effortless comfort and exceptional durability. They are circulatory compression socks and provide graduated compression which is important in a good sock. Due to a tighter fit than some of our other socks, we do not recommend using them for 24/7 wear or to be used during sleep. The Travel Socks runs small - please refer to the size chart before ordering.