I would love to find the perfect '1' pair of glasses. So, off the bike, I like my Maui Jims, (with contacts of course). I found these for the bike last year, about $50.
These have been the best pair for me for day/night transitions. They actually get dark enough in the afternoon, and light enough in the pre dawn trips to work & the dark evening conditions home. They have the foam and an optional strap. I have never needed the strap, & I will turn & look to the side if something catches my eye.
I can get by with my prescription transition lenses without the contacts in. My trick I learned while bicycling, is to blink often. Works for me. I had better luck doing that than riding with lenses in the woods. Mud would get on the lenses & then I couldn't see at all.
So, this year, instead of getting new contacts, (I still have plenty) I got 2 pair of prescription glasses. I have never had prescription sunglasses, but I felt these may help protect my eyes when riding this year. Here's a link to what I think I got, too lazy to get up & get the model number.
Ray-Ban Official Website
My husband has a similar style that he got last year & he likes them. I agree with others, take care of your eyes. I don't buy cheap glasses, but I usually find them. I have stopped work until I found my MJ's in the past.
My father was blessed with excellent eyesight until his mid 40's, and he was in an accident when he was young & they had to hold his head together to put him on a stretcher, I later found out, that was no exaggeration, and that they 'didn't know what to do with his eye, so they stuck it in his shirt pocket'. Go figure, I had glasses since I was 15, but my prescription has not changed in 25 years, I will take the best care of my eyes that I can. :s
BTW, I had a pair of Wiley X with interchangeable lenses, but I found them too hard to change lenses in, as did the shop owner & the distributor. I traded them for some other goodie. Jacket or chome, not sure what, maybe both.