PromGirl is an online retailer that specializes in prom dresses and formal wear. They have a vast collection of dresses in various styles, sizes, and colors. Whether you're looking for a glamorous ball gown or a sleek and modern dress, PromGirl has options to suit every prom-goer. Their website features helpful filters and customer reviews to make the shopping experience easier. With their wide range of prices, you can find a dress that fits your budget.