Holiday parties and family celebrations like weddings are always times when you want to look your best. PromGirl can help with this fabulous collection of plus size party dresses. plus size cocktail dresses, and holiday dresses in plus sizes. Whether you’re a wedding guest in a short formal plus dress or looking to ring in the New Year in a sexy plus size cocktail dress, PromGirl can help. Here you will find elegant designer plus sized dresses and gowns. You will find affordable short plus size holiday dresses that are cheap but look chic in plus sizes.