SiS | Science in Sport GO Isotonic Gel

The SiS Go Isotonic gel provides a fast energy boost and is easy to digest. It is designed so that you don't need to take it with water making it one of the easiest ways to get quick energy. Use in a race to give yourself an edge over a competitor or use during training to ensure you get the best out of your workout. Each gel will fuel around 20-30 minutes of exercise.

Express delivery is available for £4.99 (1-3 day service; Royal Mail Tracked 24).

Free delivery on orders of £25 or over (2-4 day delivery service; Royal Mail Tracked 48).

The delivery cost for orders under £25 that include a single item is £3.99 (2-4 day delivery service; Royal Mail Tracked 48).

The delivery cost for orders under £25 that include two or more items is calculated at checkout. The total shipping cost will be dependent on the number of packages we have to send to fulfill your order.

We deliver all over the UK, including Northern Ireland. Your order will be delivered by Royal Mail. For more detailed information, please refer to our Delivery Information page.

Free UK returns & exchanges. For more detailed information, please refer to our Online Returns & Exchanges page.