non M2 Goggles with two replacement lenses.
This is the easiest lens to switch. A simple twist of the frame, and the lens will pop off. Can switch them out while riding up the lift.
The lenses are, as shown in the pics, Sonar Silver for bluebird days, Sonar Argent for low light days, and Sonar Night for, well, nights.
I bought these and their M3 Goggles to see which would fit my face. I kept the M3, so now I need to get rid of the M2's.
They fit my helmet, Smith Vantage L, quite nicely, no gap at all.
There is no mask included with this purchase. The options were to get a mask or a spare lens, and I went with the spare lens. The masks are easy to find on the Burton website.