Draw a pattern on a fabric and cut it out.
Then sew the edges of the pants and sew the legs together .
Now we need a belt. So cut out the strip and sew it around the hips.
Then we need a top. We cut out a big strip, like a strapless top and sew it on the pants.
You need to sew the edge of the top and the end of the pants also. So we get a jumpsuit like this:
Then we add the straps. We cut out two strips and sew it on the top.
And the jumpsuit is done. Then I sewed some kind of gloves. You need two strips, that you sew them in a tube.
I add the pocket on the inside of mine (so i didnt need a bag), but i didnt take any pictures.
And then all we need is a mask. I found the pattern on the youtube (https://www.youtube.com/watch?v=MRjgVcohRKs). First i made it out of the same fabric as my jumpsuit, but then i changed my mind and made it out of faux leather.
Then you just sew the elastic on, and youre done.
That is our final look, i also made a batman costume, but i dont have any pictures on how to do it.