First Endurance EFS Bar

Where to Buy

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Retailers' Descriptions

Here's what other sites are saying:

Get all you the ingredients to need to maximize athletic performance in this great-tasting First Endurance EFS bar. The Electrolyte Fuel System bar eliminates the need to supplement your nutrition with additional sources—each bar supplies 1,000mg of 5 different electrolytes. Mix of maltodextrins and simple sugars improves absorption during exercise. Amino acids Glutamine, Leucine, Iso-leucine and Valine help delay fatigue. Includes 200% of the recommended daily value of Vitamin C. Made with all-natural ingredients. Nutrition facts displayed here and on packaging may differ; information on packaging reflects actual contents. *Discount will be applied when you check out; offer not valid for sale-price items ending in $._3 or $._9.

- REI