ModCloth is an online retailer known for its vintage-inspired and retro clothing, and they also offer a great selection of plus size cocktail dresses. ModCloth's collection features unique and whimsical designs, with a focus on feminine silhouettes and playful prints. Their dresses are made with high-quality fabrics and attention to detail, ensuring a comfortable and flattering fit. Whether you're attending a wedding, a cocktail party, or a special event, ModCloth has a range of plus size cocktail dresses to suit your style.