Putting Darts in a Tank Top or Dress

Do you have a tank top or sleeveless dress that doesn’t fit well on top?

Is there extra fabric hanging loose between the shoulder and armpit?

Alot of loose fitting tops and dresses are made without alot of tight fit to them in that area.

And they just feel baggy that way, don’t they?

A customer recently brought this to me with this dilemma and you can do a simple alteration to make it fit better by putting in darts in a tank top or dress.

view of pinned up darts in top or dress, 526

Darts are pie shaped wedges of fabric stitched into a garment that take excess fabric out and help the garment fit better around the natural curves of the body.

Most darts are put in during the construction of the garment, but we are going to take some liberty here and stitch them in afterward!

Some darts lay somewhat horizontally on a top or dress and they run from the side seam to the fullest part of the bust. Some darts are vertical. But the vertical ones usually run parallel to the center front of the garment. There are also vertical darts in the backs of some blouses and dresses.

If you were sewing this garment from scratch, you would probably have a nice fitting horizontal dart that starts at the side seam and is stitched toward the fullest point on the bust. If you tried to do that on this top, the edges along the armhole would not line up evenly. Try pinching it up horizontally and you’ll see what I mean.

Since we aren’t constructing a garment from scratch, we need to have an alternate plan.

When you are pinning your darts, pin them so the outer edges of the garment are even.

Just pinch the fabric together and pin the excess fabric all the way to the full part of the bust sticking in as many pins as you need until it fits well.

Now, press the folded edge of the new dart with the tip of an iron or a mini iron.

pressing the edge of a dart in top or dress, 528

Be careful not to press the heads of the pins as they might melt.

Now, before you take out the pins, measure the distance down from the outer edge of the shirt and write down how far the pin is placed from the fold of the fabric.

measuring down the dart in top or dress, 527

So, for this dart, you can see that at the outer edge (or “top” of the dart), we are going to take in 5/8″.  At 1 3/4″ down from the edge, we’ll take in 3/8″. At 3 inches down from the edge, you won’t take any amount in. This means, you’ll be finished sewing the dart at this point.

You’ll understand it better in the next few steps.

Now, take the pins out and turn the shirt or dress  inside out. You’ll notice the pressed line you made with the iron.

pressed dart in top or dress, 529

With the right sides of the fabric facing each other, you’re going to pinch the shirt along that fold line you made with the iron. It will seem weird at first since you are pinching the fold line in the opposite direction that you pressed it in:

pinching the fold line of the dart, 530

Referring to the measurements you took earlier, pin the dart from the inside of the shirt.

pinning the dart on the inside of the top or dress, 531

For the first pin, start at the outer edge of the shirt and put a pin in 5/8″ away from the folded edge of the new dart as shown below. Then, move down the shirt 1 3/4″. At that spot, put a pin in 3/8″ from the folded edge. At the 3″ mark, I just put a pin right on the fold. That tells me where to finish the dart.

I like to push my pin in at the exact spot of that marking. It gives me a sewing line to go by. You can also pencil that line in with a washable marker, but I don’t like to take the chance of it staying permanently on the fabric. I like to just “eyeball” where I should sew, using the pin placement as my guide..

stitch the dart in top or dress, 532

Normally, you want to take the pins out and not sew over them, but I wanted to show you (by leaving the pins in this time) where my sewing line goes in relation to my pins. As I mentioned before, I stick the pins in in the exact spot where I am going to sew the seam or the dart:

dart stitched on top or dress, 533

Now, just press the dart down toward the hem of the top or dress

press the dart down, 534

If the dart doesn’t want to lay flat, you can stitch it down with matching threads as in the photo below. (Just stitch the area between the two pins.)

to make the dart lie down, stitch between the pins for dart for top or dress, 536

When you are finished, you won’t have that gap like you did before. This time it will fit perfectly!

finsl view of darts in top or dress, 535

You may be wondering why I didn’t make a dart on the side seam of the shirt. If I did do that and pinched the fabric to form the dart, I would need to take up the same amount in the back of the shirt (in other words, I would need to make a dart in the back too, so that the side seams are the same length.)

Does that make sense?

If this top would have had sleeves, it would have been more difficult to do the alteration.

This way, your top fits so much better in a matter of minutes!