SiS


SiS GO Isotonic Energy Variety Pack - 20 Pack

£29.99

20 isotonic energy gels in five flavours, with 22g of carbohydrate per gel for training and race preparation.

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The SiS GO Isotonic Energy Variety Pack contains 20 ready-to-use energy gels for endurance training and race preparation. Each gel supplies 22g of carbohydrate in a portable isotonic formula, giving runners, cyclists and triathletes a simple way to organise their fuelling.

The pack is listed with four gels each of Orange, Tropical, Blackcurrant, Lemon & Lime and Apple, making it useful for comparing flavours or rotating them across longer sessions. The gels can be consumed without an additional drink alongside each sachet, though athletes should continue to meet their normal fluid needs.

Product Specifications

Product: SiS GO Isotonic Energy Variety Pack - 20 Pack
Product Type: Isotonic energy gel variety pack
Pack Size: 20 gels
Flavour Breakdown:
4 x Orange
4 x Tropical
4 x Blackcurrant
4 x Lemon & Lime
4 x Apple
Carbohydrate Per Gel: 22g
Formula: Isotonic energy gel
Water Required: No additional water required
Primary Carbohydrate Source: Maltodextrin
Primary Use: Fast-acting energy during endurance exercise
Best For: Running, cycling, triathlon, sportives, marathons, long gym sessions and race-day fuelling
Suggested Use: 1–3+ gels per hour depending on sport, duration and target carbohydrate intake
Carbohydrate Target Guidance: SiS recommends aiming for 60–90g carbohydrate per hour during exercise
Certification: Informed Sport certified
Key Features: 20-pack mixed flavour format, 22g carbs per gel, isotonic formula, no water needed, easy-to-carry sachets and fast on-the-go fuelling

Why We Choose SiS

We choose SiS - Science in Sport because they create trusted sports nutrition products designed to help athletes fuel, hydrate and recover with confidence. From isotonic energy gels and electrolyte tablets to recovery drinks and advanced endurance fuelling, SiS supports runners, cyclists, triathletes and active individuals before, during and after training and racing.

Science-Led – Developed with a clear focus on sports science, performance nutrition and real-world athlete needs.

Easy to Use – Practical fuelling solutions such as isotonic energy gels that are simple to take during exercise, with no unnecessary complexity.

Endurance Focused – Designed to support sustained energy, hydration and recovery across running, cycling, triathlon and high-intensity training.

Trusted by Athletes – Used by everyday athletes and elite performers who need reliable nutrition when performance matters.

That’s why SiS is part of the North Sports collection — giving you proven sports nutrition to fuel harder sessions, support recovery and perform at your best.

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