This test version is not lined and uses three lycra remnants of varying weights.The green wave print is a lighter-weight knit to the solid colour fabrics so it should have had a second layer underlining it to balance its weight against the other fabrics. Live and learn.

On swimwear, I also exaggerate the derriere curve as you can see on the test pair above. I added the bust cups to the soft bust shelf.

I joined the crotch piece to the front to eliminate this seam.

On this test version 

These changes were added to the pattern pieces.

The things I couldn’t fix on the green test version:

– angle in the straps so they don’t slip off my shoulders

– fully line this next version. I don’t like unpicking lots of overlocking so the test version remained unlined but is usable.

The derriere curve is lower on this pair too. It’s now a standard adjustment I do on the paper pattern at the start of the project. 

Here are the finished pattern pieces with all the elastic lengths noted and the stitch lengths for future reference.