long prom dresses yellow Ruffled A-Line Dress with Cut Out– PromGirl with its shimmering yellow sequin fabric adds a touch of dazzle Ava Presley 28576 Size 2

The jacket comes in soft navy French terry cotton trimmed in white terry cotton and completed with a tiny pocket

Frances and her bridesmaids in black leather jackets 9

What Defines a Dressy Winter Dress

Go for: full-length gowns, elegant midis with elevated fabrics, structured bodices Best fabrics: satin, crepe, lace, chiffon with lining, embellished details Where trendy works: one-shoulder, sculptural bows, dramatic sleeves, metallic accents When youre shopping for formal mother of the bride style, make sure to check out Adrianna Papells collection of eveningwear for MoBs

The merino wool is breathable and naturally moisture-wicking, and (best of all) machine washable