Science in Sport Starter Pack - Endurance Pack at Amazon which contains the following items:
2 x SiS GO Isotonic Gels,
2 x SiS GO Energy Sachets,
2 x SiS GO Electrolyte Sachets
2 x SiS Go Energy Bars
2 x SiS REGO Rapid Recovery Sachets
1 x Free 800ml SiS bottle
Seems like a good deal to me and if you use the subscribe and save option its £6.64.