Unleash the Beast Within! ⚡ Perfect for any occasion, from workouts to workdays. Stock up with a 24-pack for endless energy on-the-go. Join the Monster family and unleash the Ultra Beast within. Only 10 calories per can, perfect for the health-conscious. Indulge in a refreshing berry taste with zero sugar. 10 calories berry flavor made in USA Monster Energy Ultra Red is a sugar-free energy drink that delivers a refreshing berry flavor with only 10 calories per can. Available in a convenient 24-pack, it's perfect for those seeking a lighter energy boost without sacrificing taste. Proudly made in the USA, this drink is designed for the modern, health-conscious consumer.