CLIF BLOKS™ are the latest nutrition option for endurance athletes. Bloks come in chewable, 33 calorie cubes, making it easy to customise and track caloric and electrolyte intake during long outings and races.   Features Formulated for athletic performance. Two flavours with caffeine (Tropical Punch, Black Cherry). Simple-to-handle. 6 x Easy-to-chew. 3 bloks is equal to 1 shot gel. Nutrition Information