To wear this bridesmaid dress, simply slip it on over your head and adjust the halter strap for a comfortable fit. Since it's fully lined and has a built - in bra, you don't need to wear additional undergarments. When it comes to sizing, if the standard sizes 2 - 16 don't fit you, don't worry. Just measure your bust, waist, hips, and height accurately, and either email us your measurements or add them to the note box during checkout for a free custom - sized dress. For maintenance, it's best to dry clean this satin dress to keep it looking its best. Avoid sharp objects that could snag the fabric. If there are any minor wrinkles, you can use a low - heat iron on the reverse side of the dress to smooth them out.