Men's tank top I bought at Target for me. Of course the under arm area is too big.
The gray tank top I took in at the sides was a little bit snug. This black one I am going to take in at the shoulders.
Using and old tank top as a guide for the arm holes and pining where I want to sew.
Since the back shoulder piece is wider I matched the seams at the sides and made a pleat at the back and pinned it.
Then stitched across and cut off the excess shoulder.
Here's the back shoulders with a cute little pleat.
And again with the weird selfies. You get the idea of the shoulders. This brought the arms holes up. Still a little loose under the arms. I may or may not take in under the arms just a little. This is for around the house anyways so I'm happy with it.