Hydration is key during moderate to high intensity exercise when sweat rates can reach 1-2 litres per hour (containing fluid and electrolytes). If fluid is not replaced at an appropriate rate this elevates the risk of dehydration, which can result in increased body temperature, heart rate, glycogen (carbohydrate) usage at the muscles and perceived effort whilst working at the same exercise intensity, which can collectively result in early fatigue. Caffeine has been added to the already established SiS GO Hydro due to being undoubtedly one of the most research proven methods by sports scientists to improve your performance by providing both a physical and mental boost just when you need it. In addition to altering muscle metabolism, caffeine is also believed to have direct effects on the brain by improving reaction times and lowering our perception of effort for a given workload, thus making the exercise now seem easier.
SiS GO Hydro + Caffeine therefore provides a low calorie high electrolyte option to optimize hydration, with the addition of caffeine to provide a physical and mental boost for those high intensity parts of training or racing.