Vintage spice girls tunic dress white size small 90s

Womens Dress Size Small. The Spice Girls Retro Remake? Not sure if it's true vintage 90s. Tunic Dress Long Shirt. Size small but there's quite a bit of give to it. You can see in the measurements it's 33.5" long and when laid flat it measures 19.5" across the bust from armpit to armpit.