Sleeveless smocked waist Dress

Crew neck - Sleeveless - Smocked waist - Approx. 38" length in the small 74% modal, 23% recycled polyester, 3% spandex Sz L : armpit to armpit approx 17.5” but it has stretch so measurement would differ depending how much you stretch I tried to measure without stretch ... shoulder to hem approx 37” but smocked waist so it would not actually fall 37” Sz S: same explanation on sizing as the L but measurements are: armpit to armpit approx 16.5”, shoulder to hem approx 34.5 Mannequin wearing S