The SiS GO Energy Gel + Caffeine takes the same isotonic formula as the classic GO gel and adds 75mg of caffeine for the moments a ride gets serious. It suits racers, event riders and anyone who wants a sharper edge in the final hour. Each gel provides 22g of fast-acting carbohydrate in SiS's light isotonic texture, so it goes down easily without water even at high intensity. The 75mg of caffeine, roughly a strong espresso, lifts alertness and perceived effort. Take it 15 minutes before a hard section, at the start of shorter high-intensity efforts or in the closing stages of a long event. Key features 22g of carbohydrate plus 75mg of caffeine per gel Isotonic formula, no water needed Light texture that is easy to take at intensity Vegan friendly Informed Sport certified Best used alongside standard GO Isotonic gels rather than as your only fuel; save the caffeine for when it counts.