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Sis

Developed for sports enthusiasts as well as profession athletes, Science in Sport presents its exertive range of nutritional and energy gels and powders. Fuel yourself to bring out the best in you.
Sports Nutrition
Protein
Shaker Bottles
Bars and Supplements
Sis GO Isotonic Energy Variety Pack - 7 Gels x 60ml

£9.00RRP£9.99

Sis 800ml Narrow Neck Bottle

£6.49

Buy now. Pay later. Earn rewards

Representative APR: 29.9% (variable)

Credit subject to status. Terms apply.
Missed payments may affect your credit score.

Use Code: FF20

T&Cs Apply

20% off Full Price*
Use Code: FF20

United Kingdom

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© 2026 Frasers Group Trading Limited.

Frasers Group Trading Limited. (FRN: 980401), trading as ‘Sports Direct’ is an appointed representative of Frasers Group Financial Services Limited (FRN: 311908) who are authorised and regulated by the Financial Conduct Authority as a lender. Frasers Plus is a credit product provided by Frasers Group Financial Services Limited and is subject to your financial circumstances. For regulated payment services, Frasers Group Financial Services Limited is a payment agent of Transact Payments Limited, a company authorised and regulated by the Gibraltar Financial Services Commission as an electronic money institution. Missed payments may affect your credit score and mean your 0% interest plans end. * Exclusive access to discounts on selected products for Frasers Plus customers before everyone else.