To use this babydoll set, simply put on the babydoll over your body and adjust the shoulder straps to your comfort. Then slip on the matching thong. When wearing, make sure the adjustable straps are tightened enough to keep the babydoll in place. As for maintenance, it's best to hand - wash this set in cold water to preserve the delicate lace trims. Avoid using harsh detergents as they may damage the fabric. After washing, lay it flat to dry. And don't forget to store it in a cool, dry place to keep it in good condition.