I’ve been using Oakley’s for a long time and they really have nailed a lot of things in the cycling market with their combination of frame styles and lens options.
I got some Oakley’s last year with the Prizm Low Light Lens. Initially I had thought it might be good on on cloudy days road riding, but I still tend to gravitate towards Prizm Road lenses which is a little darker but still perfect on cloudy days.
However I recently found that the Low Light Prizm lens is fantastic on my heavily forested XC trails. I have found the Prizm Trail a little too dark on some of my XC trails due to the heavy forest canopy and tend to wear the non-Prizm photochromic lens instead. I noticed some of the Oakley sponsored riders, like Kate Courtney, wearing the Low Light Prizm last season for some races. They are fantastic on the XC trail and now my lens of choice for days XC riding under tree cover.
For more well lit XC trails, the Prizm Trail is still a fantastic option.