SIS (SCIENCE IN SPORT) Energy Gels

Discover SIS (Science in Sport) energy gels

When your training or race is getting tough, SIS (Science in Sport) energy gels are made to fit in with your session. Whether you’re building up distance, chasing a faster time or simply wanting to feel more prepared for your next workout, this range offers options to match different types of training.

You’ll find a focused selection of energy gels here from SIS, so you can pick what suits your style of movement, your taste, and how you like to fuel on the go.

Isotonic energy gels: simple, on-the-go fuel

If you prefer a “grab and go” approach, isotonic gels avoid the need to mix powders or carry extra bottles.

The SiS GO Isotonic Energy Gel Blackcurrant 60ml and SiS GO Isotonic Energy Gel Orange 60ml are popular options if you like classic, fruity flavours. These gels are convenient for use on the move, so they can slot into long runs, rides or team sports sessions.

If you prefer something a little sharper and fresher-tasting, the SiS GO Isotonic Energy Gel Lemon & Lime 60ml offers a zesty option that many people find easier to take during intense efforts.

Beta Fuel gels: for bigger training days

On days when you’re out for longer or pushing the intensity, you might choose a more concentrated option like SIS Beta Fuel gels. These are created with serious endurance sessions in mind, so they can fit well into training plans for marathons, triathlons, long bike rides or back-to-back workouts.

Different flavours, such as Strawberry & Lime, are there to help you find something that feels easy to take even late into a session, when taste and texture can really matter.

Flavours and textures to suit your body

Everyone has different preferences when they’re working hard, so it can help to try a couple of flavours and textures to see what your body responds to best:

• Fruity and sweet: Orange or Blackcurrant can feel familiar and easy to enjoy.
• Sharp and refreshing: Lemon & Lime or Strawberry & Lime can feel lighter, especially later in a long session.
• Thicker vs. smoother: Some people like a more gel-like texture, while others prefer something that feels closer to a drinkable liquid.

Starting with a small selection and trying them on shorter sessions can help you notice what feels most comfortable for you.

Explore more from SIS (Science in Sport)

If you’d like to see how these gels sit alongside other options, you can explore the wider SIS (SCIENCE IN SPORT) Hydration & Gels range. You can also look across the full SIS (SCIENCE IN SPORT) Active Nutrition collection to find products that match the way you train, play and move.