Black V neck Tulle Lace Long Prom Dresses, Black Lace Formal Evening D shdress The Girlfriend's Guide to a Formal dress code. Reserved for elegant evening events, this dress code is less formal than Black Tie but more formal than Cocktail. Women should opt for a Dress length makes the look From mini to maxi, each length creates a different vibe. Save this guide for effortless styling Follow for more chic outfit inspo Sparkly Deep V Neck Black Sheath Prom Dress Can formal dresses be shorter than floor length? : r PetiteFashionAdvice Why are girls wearing floor length prom dresses?