Save $10 with this stack. The PRE + CRE stack is a top selling stack for a reason. It features Prolific Pre-Workout, High Volume Caffeine-Free Pre-Workout, and TruCreatine+. TruCreatine is taken daily to maximize muscle and strength gains. High Volume is a caffeine-free pump powerhouse and can be used on days you have already had your caffeine, are hitting the cardio real hard, or are working out close to bed. Prolific is packed with caffeine, cognitive aids, and performance ingredients for a full-spectrum workout experience. Want a hit of energy with an insane pump? Try 1 scoop of each.