At Science in Sport they are dedicated to developing the best sports nutrition products to help endurance athletes perform at their best. Their range includes award winning gels, powders, bars and supplements, used by elite athletes around the world. Sis Go Caffeine is a Carbohydrate energy drink mix with electrolytes, caffeine and sweetener. Delivers energy fast with a caffeine boost. Key Features: For a fast physical and mental boost. When you want an energy boost, but want the benefits of caffeine too. Delivers energy fast with a caffeine boost. Use before or during sport for added physical & mental focus when you want to get an edge. SiS GO Caffeine is a Carbohydrate energy drink mix with electrolytes, caffeine and sweetener. Available in Berry. Box of 18 45g Sachets. Please note: Previously known as Smart 1 Electrolyte.