Flip down reading glasses available in 4 different strengths that clip on to the bill of your baseball cap. I shoot freestyle and needed glasses to see the marks on my sight. I typically would break about 3 or 4 pairs of traditional reading glass frames a season. My Flips have already survived the indoor season, outdoor season and hunting season and they are still going strong.
Flips are the best thing since apple pie when it comes to convenience.
They are out of the way when you don't need them and available with just a flip when I need to read or see something up close. I wear them everywhere when I have on a cap and that is most of the time. If you think they are great for archery wait until you go fishing and need to tie a new hook on your line. Flips can also be used with your current glasses just clip them on top.