Bought the Notus (contrast), Surge (darkshift), and Panhead (contrast) frames because I couldn't decide. Bad call because they are all amazing and I am keeping all 3 frames. Notus and Panhead CONTRAST (yellow to yellow grey) are especially great at low light and night riding and really make a difference, but also good during the day and transition quickly to full sunglasses mode. Notus and surge fit is especially comfortable and lightweight, panheads have a little more wrap around and better side/peripheral vision, but slightly loose...but adjustable. Again all 3 frames are fantastic, fit well, and function perfectly.
Bought the Notus (contrast), Surge (darkshift), and Panhead (contrast) frames because I couldn't decide. Bad call because they are all amazing and I am keeping all 3 frames. Notus and Panhead CONTRAST (yellow to yellow grey) are especially great at low light and night riding and really make a difference, but also good during the day and transition quickly to full sunglasses mode. Notus and surge fit is especially comfortable and lightweight, panheads have a little more wrap around and better side/peripheral vision, but slightly loose...but adjustable. Again all 3 frames are fantastic, fit well, and function perfectly.
I ordered the bifocal Sunglasses with several replacement inserts in 2010 when I started riding. I am so glad that I could still order the inserts. Great protection from the wind and prevent fogging.
These are only lense we wear my 15 year old frames are finally showing wear
gaskets are the only wear item on this top performing lense.

