Orange flavoured, I think. It’s a really light and fresh flavour, which is definitely in the citrus zone. It’s very much like a flavoured water which makes it refreshing and thirst quenching. With zero calories, it’s also less likely to damage your diet too. Probably the most unusual thing about this drink though is the textured can. While you are drinking it, the nobbly bobbly lumps all over the can give you quite a good grip on it and certainly assure you of a quality product.