This may look a bit familiar. I made one last month, but the neck was too open for my narrow shoulders, plus I made the sleeves a little longer.
Pattern: 6216 (or A6216). Very easy pattern. This tip is a front and back piece and a neck band. This short sleeve top takes less then 1 yard or fabric. I only bought 2 yards of this white knit.
Fabric: inexpensive white knit.