Iridium is a dark and juicy red with great structure for drinking now and it's a keeper. It is made from The Boneline vineyard's and some of New Zealand's oldest Cabernet vines, which grow at the winery's natural amphitheatre on the banks of the Waipara river, which is a heat trap during North Canterbury's dry summers. This site is well suited to ripening late growing grape varieties such as Cabernet Sauvignon, Cabernet Franc and Merlot. All grapes are hand picked, hand sorted and slow fermented before being matured for 18 months in French oak.