CLIF SHOT BLOKS™ are a great energy fuel for endurance athletes or any active adults. With a similar similar nutritional profile to CLIF SHOT® gel, CLIF SHOT BLOKS™ are an alternative to energy bars and drinks. Each small block provides 100 calories of energy-rich nutrients, so you'll be able to monitor your caloric intake for training or dieting purposes. CLIF SHOT BLOKS™ are available with or without caffeine.