Lift and Shred is Jillian's incredibly effective weight lifting workout program that will boost metabolism, burn fat and build a lean sexy physique. It is comprised of two 30-minute workouts that progress in difficulty. All you need is one set of dumbells from 8 lbs. up to 15 lbs. The more fit you are, the heavier you can lift, so you can continue growing with the workouts. As always, there are modifications for every single exercise.