To use these leg warmers, simply slip them over your legs. They're suitable for various activities like running or cycling. Make sure to choose the right size for a snug fit. When it comes to maintenance, machine - wash them in cold water on a gentle cycle. Hang them to dry to keep their shape. Avoid using bleach as it can damage the material. Also, check the silicon grippers regularly; if they start to lose their grip, it might be time to replace the leg warmers.