Because it's so hard to find a bata de cola dress ready-made, I'm often asked for help on how to make your own.
Unfortunately, making a bata de cola dress is not for the faint-hearted. Even my regular flamenco dressmaker, who makes wonderful ruffled flamenco dresses, finds them difficult. Getting the fall of the ruffles right is a challenge, even for an experienced seamstress!
If you're determined to give it a try, this Folkwear pattern (right) is the only bata de cola pattern that I know of. Although it's not designed by a flamenco professional, the basic shape is there.
However, as you can see from the photo, the front is very short. You must adapt the pattern to make the front and sides longer, because you can't control the cola if you can't reach the hem with your foot.
You'll need to make the cola longer too, and add stiffening.
A good guide is that the back seam from your waist to the tip of the cola should be roughly equivalent to your height.
Folkwear Bata de Cola Pattern on eBay