Gluten Free. Naturally Sweetened. Kill Cliff was developed by a former U.S. Navy Seal – as an athletic recovery drink with the highest quality natural ingredients. Kill Cliff is low calorie and lightly caffeinated, with a natural lemon-lime flavor and tastes awesome. Recommended for daily consumption (1-3 cans) both before and after workouts, Kill Cliff is the refreshing, better tasting, and healthier alternative to energy drinks, sports drinks, and soda. A portion of the proceeds from every case sold is donated to military and veteran – based charities including the Navy Seal Foundation.