To use this jacket, simply zip it up and you're ready to go out for your daily activities. When it comes to washing, it's best to follow the care instructions on the label. Usually, a gentle machine wash in cold water is recommended to keep the colors and materials in good condition. Avoid using bleach as it can damage the fabric. Hang it to dry instead of using a dryer to prevent shrinking. As for sizing, always refer to the size chart because different suppliers may have slight variations. If you're in between sizes, it's a good idea to choose the larger one for a more comfortable fit. Also, store the jacket in a cool, dry place when not in use to keep it in great shape.