To use this parka jacket, simply zip it up and adjust the scarf collar for extra warmth. When choosing a size, always refer to the size chart in the image gallery. Since different suppliers and brands have their own size charts, take your time to find the right fit. For maintenance, it's recommended to machine - wash the jacket in cold water on a gentle cycle. Use a mild detergent to keep the fabric and print in good condition. Avoid using bleach as it can damage the polyester material. Hang the jacket to dry instead of using a dryer to prevent shrinkage. If there are any zipper issues, gently lubricate the zipper with a graphite pencil to make it slide smoothly.