Using the Tineli Core Thermal Winter Headband is easy. Simply wrap it around your head snugly. It's suitable for both men and women and can be worn during various outdoor activities like cycling and triathlon. When it comes to maintenance, you can machine - wash it in cold water on a gentle cycle. Avoid using bleach as it may damage the fabric. After washing, let it air dry. Also, don't expose it to high heat, as it can shrink the stretchy material. Keep it in a cool, dry place when not in use.