The 31 Lean and Mean Cardio Routines manual is packed full of cardio strength based training routines that will not only help you get shredded, but will also help you get strong as well. Forget long, boring sessions of regular cardio. Within the 31 Lean and Mean Cardio Routines manual you'll get 31 unique and highly effective cardio conditioning session that you can use with any program out there or use as it's own stand-along program in itself.