NWOT Retrolicious Dress Modcloth Unique Vintage Glam Tie Red Dress, size large, could fit a medium or small, as it is extremely stretchy.  95% Polyester, 5% spandex. 
"You're the next bombshell babe! This red Retrolicious Dress has sexy, stretchy material and ruched waist flatter that hugs every curve. A high neckline with a self tie bow and side pockets top off this chic ensemble!"

Color is slightly darker and a deeper rouge color than shown in first the model pictures.  Actual dress and color is shown in the last 2 pictures.  PS.  It has pockets!

Check out my other listings, I gladly combine shipping.