The black fabric is a thin knit that has open areas so that skin will will be seen. I think I purchased this from fabric.com. I wish I had some more and will visit their site to see if I can track my previous order.
|Fingers peeking through|
Here is a view of the top with darts sewn. I have attached at the shoulders and basted the side seams for second fitting. I had added one inch just in case seam allowance but find I really do not need it for the knit I am using. This is from EOS.