babydoll long sleeve dress Smocked The hemline is softly pleated Allison Kelly Long Sleeve Empire

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Clment Breton provides a french twist on that Ivy style

A lingerie store can fit you for a strapless bra to further assist keeping everything in place

Im especially interested by the woman to the left and the one in the back (middle-fronts daughter) whose sleeves seem to belong not to the overdress but an under layer

Good options: Flat sandals (metallic, neutral, or colored) Block heel sandals for stability Wedges with wide base Barefoot (for ceremony only) Ballet flats for indoor reception Midi and high-slit dresses give bridesmaid dresses opportunity to show off adorable shoes