women's white dress with sleeves gathered long dress-ANN S / Black and fall White Dress, Long Sleeve White

Chic and effortlessly elegant, the Goddiva Scalloped Lace Bodice Pleated Chiffon A-Line Maxi Dress in Navy Blue is perfect for any special occasion

Show off a luxe sheen in this curve-hugging midi dress designed with smooth satin-knit fabric perfect for your next cocktail party

Black Long-Sleeved Dress For Halloween Costume Good American Gathered Side Long Sleeve Dress ($83, originally $139) If you really want to commit to the bit and wear something more formal, you can't go wrong with a long-sleeve black dress like this cool evening style from Nordstrom

Buy them from a brand or a retailer that can give you good feedback on how they will break in, how much they will stretch, how much they might shrink on their first wash, Chen says