CLIF recently debuted CLIF BLOKS Sours, developed with CLIF Bar sponsored athletes.
The BLOKS Sours were released April 1, and the flavors include Strawberry Lemonade, with 25 mg of caffeine per serving, and Green Apple (non-caffeinated). Strawberry Lemonade includes 90 calories per serving, and Green Apple includes 80 calories per serving.