This lavish John Walker & Sons XR 21 is an exclusive blend of Johnnie Walker reserve rare whiskies, inspired by Sir Alexander’s own hand-written notes. Alexander Walker II was a master blender like his father and his grandfather before him, who devoted his life to making exceptional whiskies. In 1920, he received a knighthood from King George V for his services to the nation. This John Walker & Sons XR 21 is inspired by this very special occasion. Inspired by Sir Alexander’s own hand-written notes, it is blended from the exclusive Johnnie Walker reserve of rare whiskies, all of which have been matured for a full 21 years.