To look like a British gentleman, make a navy vertical striped suit and a white and red vertical striped dress shirt your outfit choice. Brown suede tassel loafers will be a welcome complement to your getup. As you can see, even after 50 your dressing options are still rather broad.
A navy vertical striped suit and a black long sleeve shirt worn together are the ideal outfit for those who appreciate elegant combos. And if you wish to effortlessly polish up this ensemble with a pair of shoes, why not introduce brown suede tassel loafers to the mix? Just because you're in your 50s, doesn't mean you should give up on fashion, and this combo illustrates exactly that.