To use this jacket, simply zip it up and adjust the collar as you like. It's suitable for a variety of winter activities, whether you're going to work or just hanging out. When it comes to sizing, always refer to the size chart because different suppliers have different size standards. For maintenance, it's best to follow the care instructions on the label. Usually, a gentle machine wash in cold water is okay. Avoid using harsh detergents that could damage the fabric or the filling. After washing, let it air dry instead of using a dryer, as high heat may shrink the jacket or damage its shape. Also, try to store it in a cool, dry place to keep it in good condition for a long time.