Hi viz on road. The first time I drove up behind a rider wearing them they looked like two bright yellow lights going up and down. Coupled with his bright red blinker and hi viz jersey and rear view mirror (Take a Look"), I initially thought, "eesh, I'll never do, THAT!". Heck, the first thing I used to take off a bike was the reflector.
Then I had a close call a couple of days later on my bike. I've been hi viz jersey and socks ever since....and a Take a Look mirror.
I don't give a s*** what other people think, but, a lot of people are doing exactly what I am doing and I see more every day. And, many are experienced riders too.