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.
If ordered before 9pm, delivered by courier next working day. Available on orders placed before 9pm (2pm weekends and Bank Holidays) for delivery next business day. Applies to most delivery addresses within mainland UK.
Please remember to add postal time (2-3 working days) to obtain a complete estimate of delivery to your door.
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.
Where reviews refer to foods or cosmetic products, results may vary from person to person. Customer reviews are independent and do not represent the views of The Hut Group.
SUPER to release energy without any stomach discomfort
What can you say when the international peloton use this product. they are the most quick and good taste gel. You do not need to have water, good to digest. Will buy again. SIS is quality for sure
Great product ! ...very easy to use, taste good, easy to swallow on the move and seem to do just the job. SIS gels are much better now they have increased the contents values, they now more than compete with the competitions equivalent, except far better value.
Very good light taste, ecellent for me! not sticky
As expected with probikekit, fast delivery and a great price. Excellent product from SIS which I use on my weekend rides to good effect. Thanks!
SIS Gels...: Pro quality, UK made, great to consume, very tasty! TIP: take 1 x gel approx 30mins-1hr before workout/race and then one every 1-2hrs depending on intensity/duration. I run for up to 2 hours and find 1 gel and some organic medjool dates (yum!) before workout means I don't get any noticeable energy drop.... just rehydrate afterwards!
Great value. Love the sis gels. Get on with them better than other brands an think they work an make a noticable difference. Great also when not had a chance to eat much an give a boost.