Low-cut blouses can be inappropriate at work or in public settings. A mishap of accidentally showing cleavage or your bra can occur when wearing a low-cut blouse. To avoid having this occur, the blouse can be altered or fixed so it is no longer low cut. Adding additional fabric to the blouse or creating a snap in piece is one of the easiest ways to have your blouse appropriate and wearable for any setting.
Look for a fabric that is the same as the low-cut shirt. If this cannot be found, then use a complementary fabric. A lace fabric is good for a dressy blouse, while a simple cotton is preferred for a simple blouse. Only a small amount is needed, approximately 12 inches by 6 inches, so scrap fabric or an old shirt may be used.
Place the fabric behind the low cut of the blouse and position it how you would like it to look. Most low-cut blouses are V cut, so you will want this spare piece to be a scoop neck or straight neck piece.
Place straight pins through both fabrics. This keeps the blouse in place for where you want to sew in the spare piece.
Turn the blouse inside out so you see the wrong side.
Line the blouse's existing seam up on the sewing machine. Sew a straight seam to attach the new fabric to the blouse. This type of seam is normally called "stitch in a ditch," using the existing seam so it does not alter the look of the blouse.
Cut off any excess fabric and thread and try on the blouse. If adjustments are needed, use a thread ripper to remove the seam and start over.
If you prefer not to add a scrap of fabric to the low-cut area, but simply want the blouse to fit better and not accidentally open up, you can sew in snaps or hooks and eyes at the top of the cleavage.
Be careful of your fingers when sewing to prevent accidents.