Over long distances, if the body is not rehydrated at regular intervals, your performance can be impacted by cramping, nausea and dehydration. Unived Rrunn During Hydration & Endurance is an isotonic sports drink that keeps your fluid levels optimal, and maintains your endurance ability. The electrolytes in RRUNN During help offset physical losses, and the key osmolyte protects your body from environmental stresses. Amino acids increase electrolyte uptake and reduce fatigue. Rrunn During is natural, vegan, gluten-free, and can be pre-mixed before an event, it ensures that once you get going, you keep going.