To wear this dress, simply step into it and pull it up over your body. Since it's backless, make sure your bra doesn't show if you're not comfortable going braless. As for the small black mark on the right shoulder elastic, don't worry too much about it as it's not very noticeable. When it comes to maintenance, follow the care instructions on the label. Usually, a gentle machine wash or hand wash in cold water with mild detergent is best. Hang it to dry to keep its shape. Remember, this dress is a one - off sample, so treat it with love to enjoy it for a long time.