I borrowed a top just like this one (in black/grey) from my little sister. It was so comfy and cute I didnt want to give it back. I offered to buy it off her, but she couldnt part with it either. So I made a pattern using her shirt before returning it and found this black and white stretchy knit and came out with this cute new top.
I'm going to make a tutorial as I took some shots while I was working on it, I'll edit this post once its done.