How to Make a Supergirl Costume at Home

If you want to channel the look of Supergirl, the brave and rebellious cousin of Superman, all you need are a pair of scissors, a sewing machine and a quick trip to the craft store. This project is perfect for beginner sewers, because it only requires you to sew a few straight lines. Whether you're dressing up for Halloween or attending a cosplay event, you'll impress everyone with your creative super powers.

Things You'll Need

  • 36-inch square red cotton fabric
  • 24-inch length red grosgrain ribbon, 1/2-inch wide
  • Safety pin
  • Sewing machine
  • Matching thread

Make the Cape

On three sides of the red cotton fabric, make a 1/4-inch fold and press. Sew the folds down to hem and finish these edges.

On the fourth side, make 1-inch fold and press. Sew the fold down 1/4 inch from the raw edge to make a casing for the ribbon.

Pin the safety pin on one edge of the ribbon. Thread the ribbon through the casing. Remove the safety pin and tie a knot on each end of the ribbon to keep it from fraying.


  • If you don't want to be bothered with finishing the edges of the cape, you can make a superhero cape from a bath towel.

Make the Suit

Things You'll Need

  • Red skirt, tutu or shorts
  • 1 yard yellow ribbon, 2-inch
  • Blue T-shirt
  • 2 sheets red craft felt, 9-inch-by-12-inch
  • 1 sheet yellow craft felt, 9-inch-by-12-inch
  • Block capital letter S stencil, 4-inch
  • Fabric marker with disappearing ink
  • Fabric glue

On one of the sheets of red craft felt, draw a 6-inch equilateral triangle. Redraw one side so it curves outward slightly. Cut out the shape.

On the sheet of yellow craft felt, draw a 5-inch equilateral triangle. Again, redraw one side so it curves outward slightly, and cut out the shape.

Using the disappearing ink fabric marker, trace the stencil for the capital letter S on the second sheet of red craft felt. Cut out the letter.

Assemble the emblem. Lay the red triangle shape flat on your work surface with the curved edge pointing up. Center the yellow triangle shape on top, matching the curved edges, and glue with fabric glue. Glue the red capital letter S to the center of the yellow shape.

Glue the Supergirl emblem to the front of the blue T-shirt in the center.

Assemble the costume. Wear the blue T-shirt tucked into the red skirt, tutu or shorts. Place the yellow ribbon around your waist and tie in the back. Trim the edges.

Make the Boots

Things You'll Need

  • Ballet slippers
  • Knee socks
  • Red duct tape
  • Scissors

Put on the ballet slippers. Pull on the knee socks over the slippers.

Completely cover your feet and legs with red duct tape.

To remove the boot, use a pair of scissors to carefully cut a slit down the front of each boot, through the tape and the socks, to the top of the foot. Slip off the entire boot, including the socks.

When you're ready to put the boot back on, put your ballet slippers back on and slip your foot into the boot. Close the slit with more red duct tape.