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SiS has been at the forefront of sports nutrition since its beginnings in 1992 and is trusted by World Champions, Olympians, and pro cyclists. SiS’s focus on serious science has meant many innovations including the development of SiS Go Gel, the world’s first and only isotonic gel. SiS’s energy bars, gels, electrolyte drinks and recovery drinks are a staple part of many cyclists, runners and triathletes training regimes.