Sans Leg Warmers

A cyclist friend and I were debating at what temperature does one need to wear leg warmers. I said it needed to be in the 40's. He said it needed to be in the 60's. I'm happy to report that riding in the 60's with Sun is no problem for me (as I snicker post ride from warm and sunny Tucson today). What am I doing here? Getting sun! I'm also taking a breathing class. Apparently my doc seems to think I forgot how to do it. Let's see.