This is The Bubblegum Dress, made out of Sophia double knit, from Simplicity 5170 from an unknown year.
It took me about a day to whip up as the pattern was a dream and it needed only to be taken in at the sides and the sleeves.
It has darts at the elbow and shoulder, a center zipper, and a round collar.
Thanks for looking! Check out my other projects at Modern Twist.
Jacki