Given that pantyhose are stretchy - your wife would likely be fine in one of our larger sizes, dependant on her build. I'm not 6'2", but I'm 5'10" and have found that as long as I'm buying a larger pair I'm usually fine. You just trade give horizonally, for give vertically if that makes sense. I'll also take a closer look at our size chat are see what extending the height range in the listed chart might look like.