Leaf has added another challenging sour flavour to its X-treme Chewits range. Sooper Sour Tutti Frutti flavour follows Green Apple which launched last year. Both variants have a metallic-looking pack featuring Chewie the Chewitsaurus turning pink or green. Anne Allin, marketing controller, said sour flavours were the latest playground craze. "These new Chewits are definitely challenging and will appeal to tweenies aged eight to 12 and also to younger kids who want to build playground credibility," she added. Rsp: 25p, six-sweet pack. {{MARKETING - P&P }}