Using this 1950s pin - up costume is easy. First, put on the dress. It's designed to fit your curves nicely. Then, add the mock cardigan over it for a more put - together look. Next, fasten the belt around your waist to cinch it in and give you that classic pin - up silhouette. Finally, place the headpiece on your head to complete the look. When it comes to maintenance, it's best to follow the care instructions on the label. Usually, a gentle machine wash or hand wash in cold water is recommended. Avoid using harsh detergents that could damage the fabric. Hang it up to dry to keep its shape. Also, store it in a cool, dry place when not in use to prevent any mildew or damage. And always be careful when wearing it to avoid snagging the fabric on sharp objects.