Born in Durango, Co, Tailwind Nutrition began life with a simple goal: to cover fuel, hydration, and electrolyte needs in a single, mild-tasting drink that won't turn your stomach into a brick or leave you trying to choke down a sticky gel or unwieldy chews during a six-hour epic. The Caffeinated Endurance Fuel pushes that mission a step further, adding 35mg of caffeine per scoop in order to provide a little extra pep to your long-distance step. Despite that addition, it's still as hydration pack and bottle friendly as the original, so you can just rinse your bottle or bladder with no funky aftertaste or smell. Not all stomachs can handle the sticky sweetness or hard-to-digest molecules found in most nutrition products. Sipping Tailwind provides steady, small doses of fuel that pass right through the stomach. The composition of Tailwind's fuel matches what the gut is made to absorb, so Tailwind enters your system quickly, without taxing the digestive tract. No surprise, then, that it includes only all-natural ingredients and organic flavors, which is part of the reason it mixes crystal clear and tastes light and clean. The result is an easy-drinking solution that eliminates the need to rely on spreadsheets to keep track of your calories, electrolytes, and hydration-just add Tailwind to water and go. Please note that Tailwind Nutrition recommends limiting continuous use of the Caffeinated Endurance Fuel to six hours.