Heading to Las Vegas for a bachelorette party? Check out these cute black dresses under $100 that are both sexy and affordable. From long sleeve party dresses to going out dresses, we've got you covered for a fun and classy dress to wear at a bach party! These sleeveless and off the shoulder dresses are the best finds from Amazon, Impeccable Pig Boutique, and Revolve, and would also work well to wear for a birthday or girls night. LTKunder100 LTKstyletip LTKunder50