SIS GO Isotonic Gel 60ml (Pack Of 30)

SIS GO Isotonic Gel 60ml (Pack Of 30)

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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.

  • Formulated to provide carbohydrate energy and electrolytes
  • 60ml of Isotonic energy per sachet
  • Just rip off the corner and squeeze into your mouth
  • Food Type: Energy
  • Vegan Friendly
  • Vegetarian Friendly

Each handy palm size GO Gel sachet contains 25g of isotonic carbohydrate energy. That's enough energy for 20 to 30 minutes of exercise, and because it's isotonic, it will still deliver energy without the need for extra water. What's more the unique gel structure of GO Gel goes down easily, so you don't get that sticky throat feeling associated with other gels.

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Delivery and Returns


SPRINT Next working day FREE on orders over £100
(£6 for orders up to £100)
RUN 2-3 working days FREE on orders over £50
(£3 for orders up to £50)
Royal Mail
CLICK & COLLECT (Glasgow) 1-2 Working days FREE  
SATURDAY DELIVERY 1 working day £12 Royal Mail

Orders received before 2pm (Monday-Friday) are processed on the same day - after 2pm orders will be processed on the next working day.

Click & Collect

Collect your order in person from the achilles heel Glasgow running shop. Orders placed before 2pm will be available for collection on the next working day; orders placed after 2pm will be available for collection in 2 working days. Orders placed over the weekend will be available for collection on the Tuesday.

As soon as your order is ready for collection we will email to let you know. When you collect your order please ensure you bring your order confirmation & identification.

International Delivery

We'll package and post your order to most locations across the world as quickly as we can - for full details of delivery charges for international orders check our delivery charges page.

Spend £200+ and get FREE EU delivery.


At achilles heel we aim to please, so if you're not completely satisfied with your order, we'll do whatever we can to make it better. Items can be returned for free for an exchange or a refund within 28 days of purchase - we offer free & easy tracked returns via Royal Mail, for full details please check our returns page.


It can be hard to get things right so we are giving 28 days from Christmas Day to return your gifts on all orders made during November and December. Our returns policy will revert to the standard 28-day period for items purchased after December 31st.

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