M Missoni Symmetrical Multi Stripe Knit Tank Dress

Missoni Knit tank dress in excellent used condition, size 42 (4-6), multi colored stripe, black blue gold green coral & yellow, empire waist, built in slip, made in Italy Measurements laying flat approximately Arm pit to pit: 12” it’s meant to stretch up to 14 1/2”? Waist: 11 1/2” - 13 1/2” Length from shoulder: 36 1/2” #313