Before you get the prom dress from an online shop, I thought you should have intended to alter a prom dress. A well-fitting prom dress is critical for both comfort and looks. Maybe you would have a skilled tailor or dressmaker to alter your prom dress. However, professional dress alterations can be expensive, so why not make many your simple alterations on your one shoulder prom dresses or strapless prom dresses at home with only a needle and thread. If you are skilled with a sewing machine, you may even be able to re-size a prom dress.
What you should prepare
Pins
Needle and thread
Scissors
There are 5step to help you finish the great alteration:
Step 1 Determine any fitting issues
Try on the prom dress with the appropriate bra and shoes. Determine any fitting issues. Is the length right? Does the bust fit? Strapless dresses should fit close from bust to waist, while a dress with straps is designed for a looser fit.
Step 2 Pin
Pin your prom dress to correct the fit. Ideally, the dress should be inside out when you pin it. To alter the bust, pin at the bust darts, rather than the side seams. Even out substantial alterations between seams, when possible.
Step3 Sew
Baste alterations into place. Use a needle and matching thread, or a sewing machine set to a long stitch length. For best results, sew hems by hand. If you remove fabric, stitch over the cut edges with a serger or zig zag stitch to prevent the fabric from fraying.
Try on your prom dress and assess the alterations. Make any necessary adjustments.
If you are not confident your skill on alteration on your beloved prom dresses, you can first use with those old and useless dresses for practice. Believe that practice makes perfect.