The name says it all. Introducing Jillian’s first pure cardio workout, Killer Cardio. It’s comprised of two incredible 25-minute workouts that progress in difficulty to blast calories while building endurance and cardiovascular conditioning.

The name says it all. Introducing Jillian’s first pure cardio workout, Killer Cardio. It’s comprised of two incredible 25-minute workouts that progress in difficulty to blast calories while building endurance and cardiovascular conditioning.