mother of bride navy blue dress Amazon.com: POMUYOO 3/4 Sleeve Formal The Dresses for Wedding A Line Long Lace Appliques Evening Size 2 : Clothing, Shoes & Jewelry Zipper Fabric EMERY ROSE Plus Size Size-Large Color:South Beach Blue

mother of bride navy blue dress Amazon.com: POMUYOO 3/4 Sleeve Formal The Dresses for Wedding A Line Long Lace Appliques Evening Size 2 : Clothing, Shoes & Jewelry Zipper Fabric EMERY ROSE Plus Size Size-Large Color:South Beach Blue

EMERY ROSE Plus Size Women Black And White Lace Patchwork Long Dress,Elegant Summer Babydoll Curve Casual Outfit For Beach Vacation,Graduation,Dinner & Wedding | SHEIN USA

It's a fine line to walk

Size-Large

Color:South Beach Blue

This image from Life shows a standard black day frock with knee length hem which may have sufficed as an evening outfit as well when worn with an appropriate hat

Zipper Fabric