Over-the-knee compression socks that reduce leg swelling with 28 hPa pressure at the ankle. - Brand: TOPVALU - Type: Over-the-knee (open toe) - Pressure: 28 hPa at the ankle - Size: M - Color: Black Never used, but there are some areas where the shape is distorted due to home storage. This does not affect the contents and they can be used. If you have swelling and are a size M, why not give them a try?