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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.
Concentrated carbohydrate energy in a convenient fast-flow gel, SiS GO Isotonic is the world's first and only isotonic energy gel with a unique patented formulation.
Please check the stock availability notice on your item when placing your order. This item is: Sold out.
You will receive an email to confirm when your item has been sent.
You can also check the status of your order and individual items by accessing My Account details and following the prompts.
Please allow 10 working days from dispatch of your order before notifying us of any late deliveries.
It may be advisable to check with your neighbours to see if a parcel has been left with them, check any outhouses you might have where it may be left if it cannot fit through your letterbox and contact your local sorting office to see if the item has been returned to the depot as undelivered and awaiting collection.
Please see our returns policy.
I ordered the SIS Gels which are simply the best on the market through PBK. The price was the best available on the Internet and the goods arrived as ordered. The only problem was the delivery time was 3 weeks. I have had deliveries from both CRC and Wiggle arrive in under a week. Your poor delivery service lets down a top quality product...Report this review
I don't know if it's my imagination but the affect this gel has on boosting my energy levels is like cheating. I've been off the bike for 6 months so my tone and endurance are slowly on the build up, but a tube of this has lifted my development noticeably. What I can say definitively is that I'm impressed with this SIS Del.Report this review