Clean Natural Performance. The all new fastpak. Sports nutrition on the fly. Black Cherry contains 50mg of caffeine per serving. Keep in mind there are 2 servings per packet. 95% Organic. As an athlete and Clif Bar s founder, I ve happily eaten a ton of CLIF® BARS and CLIF SHOT® energy gel. But after countless miles in the outdoors, it was time to expand my options, which is why we ve created CLIF SHOT BLOKS®. They re simple to handle and easy to chew, and they re the perfect complement to our bars, gels, and drinks. So if you re ready for more variety, grab a SHOT BLOKS® FASTPAK the next time you head out the door. - Gary, Founder and Owner of Clif Bar & Company Certified organic by QAI.