Clif Bloks provide carbohydrate in six individually portioned chews, with caffeine-free, caffeinated and higher-sodium options. Their slim packets fit easily into running-vest pockets, with each Blok pushed up through the packet as you eat it.
Clif Bars are substantial oat-based energy bars providing carbohydrate together with protein. Choose Bloks when you want carbohydrate in smaller portions, or a Clif Bar when you want a more substantial, food-like option during a long run or ultra.
We stock Clif energy chews and bars in the UK, with orders dispatched from Bristol. For help comparing different fuelling formats, see our Energy Chews & Bars Guide. If you're unsure which option to choose, get in touch.
