Get a FREE Clif Energy Bars. Clif Bar is the ultimate performance energy bar, purposefully crafted with an ideal mix of protein, fat, and carbohydrates to sustain active bodies before and during long-lasting, moderate-intensity activity. Start the year off right with a box of Clif’s newest flavor, Chocolate Peanut Butter with Sea Salt. Experience the rich taste of a fudgy chocolate brownie, add delicious salted peanut butter, and you get one seriously irresistible flavor combination!