I am 61 and very particular about my socks and these are the best nicest socks I have ever owned, period!
Fits just right, not too tight around the ankles
Good quality, not sure if you can make a 100% wool sock and keep the durability but that would be awesome. US made which is a huge plus.
The dash extra lights are great. I love running in them for speed work. Oddly enough that annoying sock slipping past the heel only came when I wore them walking the dog... I'm guessing it was a change in my gait but otherwise the socks don't really slip and breathe incredibly well.