The REV 90 Pak was designed to support the healthy needs of individuals following the REV 90 Program. This program emphasizes high-density, low calorie nutrition and focuses on a diet full of filling food options that are low in calorie. The REV 90 Pak? delivers the nutrition needed to follow this plan. This Pak? includes: (1) FitShake? Banana Cream canister, (1) Super Greens canister, and (1) Slender FX? Rev? bottle. See individual products for details.