Vince Camino Dress Striped Black & White Sleeveless

Vince Camino Sleeveless Black and white pencil dress Side hidden zipper V Neck Material is 68% cotton 30% polyester and 2% spandex Lined in 100% polyester Size tag is missing So please note measurements before purchasing Armpit to armpit measures approx 18.5” lying flat Waist is 16” Length from top of shoulder to hem is 37” My best guess on size would be a 6/8 but compare measurements with a dress you already have Thanks!