Anon M1 Goggles
From the Editors of Freeskier:
The defining feature of the M1 is the lens changing system. Six magnets located around the edge of the frame correspond to those on the scratch-resistant lens allowing for effortless swapping. The strap is attached to a pivoting hinge for a great fit with or without a helmet. Triple layer face foam feels great and as a bonus, each pair comes with an extra lens.The Pros: Easy lens changing system, extra lens.
The Cons: If frame gets squeezed, part of the lens may pop out.