Gels are a concentrated form of carbohydrate designed to provide fast energy when you need it. IsoGel is a new type of gel that's very easy on the stomach and it doesn't need to be taken with water. The clever part about IsoGel is that it has a consistency more like a energy drink, but it still delivers a substantial 24 grams of carbohydrate per sachet. With real fruit juice flavouring, it has a light great taste. Like all High5 products, IsoGel has been extensively tested with sportspeople taking part in a wide variety of events and personal challenges. NB: IsoGel has a lighter consistency than High5 EnergyGel, but it is slightly more bulky which may be a consideration if you are carrying a lot of gels during a longer endurance event.