This is a Lululemon black short sleeve top or shirt with a front crossover.
Here is a full view of the front of the top.
Here is a close up of the top of the front. You can see the front crossover here.
This is a full view of the side of the shirt. You can see the short sleeves.
Here is a closer view of the bottom of the top. It has an extra section of fabric to make it flare out a bit.
This is a closer view of that.
Here is a full view of the back of the top. It has the crossover in the back as it is in the front.
Here is a close up of the top of the back of the shirt.
Here is a close up of the bottom of the back. You can see a small silver omega Lululemon symbol here.
I love this top because of the crossover in the front and the back, and the short sleeves. Does anybody know the name of it?