Replaces Carbs & Electrolytes During Activity. Sleek & Portable Fastpak™. Simple-to-Handle. Easy-To-Chew. CLIF SHOT is all about delivering great-tasting scientifically-backed and sustainably-produced products to performance athletes. In other words energy food can taste great and be made from good-for-the-planet ingredients. It's that simple. . CLIF SHOT Bloks are the latest nutrition option for endurance athletes. Bloks come in chewable 33 calorie cubes making it easy to customize and track caloric and electrolyte intake during long outings and races. . Train hard to the tune of sweet strawberry energy.