To wear this Jela Playsuit, simply put it on like you would any regular playsuit. It's designed to be easy to slip into. As for the faint yellow mark on the back right side seam, don't worry too much about it as it adds to the uniqueness of the piece. 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 with mild detergent should do the trick. Avoid using harsh chemicals or bleach. Hang it to dry to keep its shape. And remember, since it's a one - off sample, take good care of it to make it last a long time.