I use CURV Z 02-21. They have foam around the eyes and are comfortable. They come in other colors including clear. Cost about $25.00. Check 'em out here. http://www.lanesunglasses.com/curv_z__sunglass.html
I bought a pair of Panoptx Photochromic 4 or 5 yrs ago and they are the most comfortable riding glasses I've ever had. Spendy, $200, but the best I've had. I have a new pair Wiley-X and they aren't near as nice. They sit on my workbench most of the time.
I stopped wearing expenses sunglasses after breaking to many pairs. Now I use Curv & Curv-Z's. They are like $10 & $20 bucks a pair. Have had the same couple pair of Curv-Z's now for 2 years. Both are tinted so at night I just wear clear safety glasses.
Wiley X Airrage non-polarized bronze and clear lenses. These have the skull strap and foam liner. Their Climate Control series keeps out dust and wind.
I broke a pair recently. Called Wiley and they sent me a new frame free the next day via priority mail.
MAXX, tinted for day and a clear pair for night riding w/vented foam on the frames. They're about $18.00 at local non-HD shops. I wear the tinted ones with my full face helmet too. I have a pair of Panoptx but they don't work any better.
Polarized. I won't buy anything else. Best bought at big sporting goods store where they have them for about $20. I won't pay more because I lose them so often.