How to make a Supergirl Costume tutorial
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This Supergirl costume tutorial is fast and easy to make! As far as super heroes go the Super Girl is amazing. She has all the abilities of Superman, but can remember life on Krypton. She loves to serve and protect and is faster than a speeding bullet.

When I asked my 6 year old what superhero she would like to dress up as, she quickly replied, “Superman, but like Superlady, because I’m a super lady”! So I designed a feminine version of the classic Superman look for her to wear.
The simple half circle cape is sewn from inexpensive and easy to sew broadcloth. It has two layers and is finished at the neckline with a bias tape ribbon. If you are a more adventurous sewist, you can choose a satin for a shiny look.
The skirt is also sewn from the same broadcloth, and is a classic elastic waist gathered skirt. I’ve included templates to sew this skirt in sizes 2-6.
I’ve sewn the belt from a thick ponte knit, but you can also use felt or fleece. These materials are great for costumes because they do not fray so you don’t have to worry about seam finishes!
To complete the Supergirl costume, I’ve paired these pieces with a tutu skirt I’ve previously made, some black knee high boots, and 3/4 length blue tee that I sewed using my Petra Tee & Dress pattern.
YOU WILL NEED:
- Superman logo patch (available here)
- Sewing Essentials (pins, scissors, etc.)
- Get the free pattern here.
For the Supergirl Cape:
- 1 1/3 yards of lightweight red woven fabric (44″ wide). You can use a synthetic shiny fabric (fabric meant for lining garments is inexpensive but can be slippery) or broadcloth/cotton for an easier sew
- 1 package 1/2″ double fold bias tape
You’ll need these for the Skirt:
- 1/2 yard of light to medium weight red fabric, 44″ wide
- 1/2 yard of 1″ non roll elastic
And for the Belt:
- 1/4 yard yellow fleece or felt
- 3″ Velcro
How to make a SuperGirl Costume:
Step 1 – Make the Cape:
You will need to assemble the pattern. For instructions on how to assemble the sewing pattern click here.
All seam allowances are 3/8″.

Cut out 2 cape pieces (on the fold). Pin wrong sides facing along two side and bottom curved edge. Stitch. Trim the corners and clip the curves.

Turn right side out and press. Topstitch along side and bottom edge. Baste neck opening closed.

Cut a piece of bias tape 1 yard long. Find the center of the bias tape and the center of the cape. Pin bias tape closed over the neck edge of the cape. Stitch bias tape closed along edge.
Step 2 – Make the Supergirl costume Skirt:

Cut a strip of fabric from selvage to selvage {size 2 – 12″, size 3 – 13″, size 4 – 14″, size 5 – 14.5″, size 6 – 15.5″}.

Sew two short ends together, right sides facing, and finish raw edge with a zigzag or serger.

Finish top and bottom edges with a zigzag or a serger. Fold bottom edge to the wrong side by 1″ and topstitch to hem.

Fold top edge to the wrong side by 1.25″ and press. Topsitch, leaving a 1.5″ gap.
Insert elastic {size 2 – 19″, size 3 – 19.5″, size 4 – 20″, size 5 – 20.75″, size 6 – 21.5″} with a safety pin.

Zigzag ends of elastic together.

Close elastic casing by topstitching.

Step 3 – Form the Belt

cut a 3″ strip of yellow fleece long enough to go around your model’s waist + 1″. Cut out two belt buckle pieces and pin wrong sides together and sew along raw edges.

Pin belt buckle on the center of the belt and stitch in place over previous stitching lines.

Sew strips of Velcro on the back edges as shown.
Download the Free Supergirl costume Pattern Below:
You can get a free copy of Adobe reader here. By downloading you are agreeing to pattern terms of use. Click the picture below and fill up the form to download the .pdf !
More Superhero Costumes:
- Batman Cape Costume Tutorial DIY
- Wonder Woman Costume for Kids DIY
- Easy Superhero Cape Tutorial
- Super Hero Costume Ideas for Kids
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