Watermelon in drinks can easily go too sweet, but the hibiscus here pulls it back towards something more tart and floral. The result is lighter than the name suggests. Cayenne plays its usual role in the Nix & Kix range, landing on the finish as a gentle heat that stops things feeling flat. Made with 45% fruit juices and antioxidant-rich hibiscus extract. No added sugar or sweeteners, 43 calories per 250ml can. One of the lower-calorie options in the range, and probably the most summery of the five flavours.