The Ultra bottle is the results of a 5-yr quest by Johnnie Walker’s proprietor, Diageo, to locate the most sustainable and lightest packaging achievable when retaining the luxurious aura from the franchise and its Exclusive combination of whiskies, which contain ultra-rare Oban, Brora, Royal Lochnagar, and several ghost distilleries. https://whiskeylandllc.com/product/johnnie-walker-blue-label-ultra/