black midi dress with lace AX Paris Women's Long Sleeve Wrap Made with a sculpting sweetheart neckline Black Lace Midi Dress

Swiss dot white long dress with lace detailing, long sleeves with elastic wrists, keyhole back closure and side pockets

They wont stretch in length but might accommodate slightly in width

I linked a couple other similar options above along with my favorite bralettes

Dont forget to add a few white or light colored collared dress shirts, a few conservative neckties and a pair of Oxfords

Roger Vivier Marlne strass mules in suede Le Monde Beryl velvet Mary Jane flats Wandler Isa kittens Jimmy Choo Krista crystal-embellished leather flats Prada crystal block-heel slingback pumps Tamara Mellon Satellite pumps Elegant Evening Bags No holiday party outfit is complete without an evening bag

For more casual celebrations, you can choose a slightly less formal outfit, but still stylish and appropriate for the season