How you make your own bikini bottom...

You will need:

Half a metre of swimwear fabric (Lycra/spandex)

Half a metre of lining fabric (Nylon tricot or Powernet mesh work well)

1-2 Meters of fold over elastic (we used 18mm wide FOE)

Rotary cutter (essential when working with stretchy and delicate fabrics!) and a cutting mat


Thread and Scissors

Spray Starch (optional)

Sewing machine (with a 3 point zigzag stitch)



Feel free to download the pattern HERE.

Our Pattern is available in a sizes 8 -16. We drafted the pattern using the Bikini Pantie Block on page 96 of Ann Haggar's Pattern Cutting for Lingerie, Beachwear and Leisurewear. If you have the book you can make the same bikini pattern to your own measurements.

STEP 1: Print out all 4 A4 pages of the PDF pattern. Assemble the pattern pieces together as shown below and tape together.

Screen Shot 2016-07-31 at 15.12.42

STEP 2: Cut out the FRONT and BACK pattern pieces in your size and tape the back pattern piece to the front to make ONE PATTERN PIECE.


STEP 3: Cut out ONE outer piece and ONE lining piece. Depending on your choice of material, you may find it curls in at the edges. To make sewing a lot easier, use a little spray starch and press to add stiffness to the fabric.


STEP 4: Pin outer and lining pieces together (right sides together).

Lingerie-la-femme-diy-bikini-bottoms-swimwear-sewing-project-bathing-suit-how-to-make-materials-06STEP 5: Overlock the side seams. Make sure to leave the top edges open as they will be closed with the waistband elastic later.


STEP 6: Turn your bikini bottom inside out so that the seams are secured inside the lining and press.Lingerie-la-femme-diy-bikini-bottoms-swimwear-sewing-project-bathing-suit-how-to-make-materials-08

STEP 7: Cut your waistband elastic: For a size 8 cut 2 widths of 78.5cm.

Size 10 cut 2 widths of 81cm | Size 12 cut 2 widths of 83.5cm.

Size 14 cut 2 widths of 86cm | Size 16 2 widths of 88.5cm.

STEP 8: Find the centre of your elastic by folding it in half and pinning. Pin the middle of the first piece of elastic to your Centre Front and the second piece of elastic to the centre back. Fold the elastic over the raw edges, making sure that the lining is incased, and pin in place. ***NOTE: when pinning, make sure to pull gently on the elastic (not the fabric) to add tension.**

Lingerie-la-femme-diy-bikini-bottoms-swimwear-sewing-project-bathing-suit-how-to-make-materials-05STEP 9: Sew your FOE in place using a 3 step zigzag stitch. Once you reach the edge of your bikini bottom continue to zigzag stitch the elastic to complete your side ties.Lingerie-la-femme-diy-bikini-bottoms-swimwear-sewing-project-bathing-suit-how-to-make-materials-09...And Voila, you're finished!