The body has enough energy to fuel up to 90 minutes of hard running. Beyond that you'll deplete your bodies glycogen stores, run out of energy and hit the dreaded wall. To fuel performance additional carbohydrate is required, SiSEnergy Gels
can help you towards you fuelling target of 60-90g of carbohydrate per hour. SiS GO Energy + Caffeine Gels
can be used during your final hour of running to provide carbohydrates for energy and reduce tiredness and fatigue.