Think of these frames as a bigger serving of the classic D2s. The D1 has been updated and upsized with a larger fit resulting in even wider peripheral views through its cylindrical lens. The combinations of high-performance dual-layer face foam with microfleece lining plus a Super Anti-Fog coating means comfort and clarity no matter what conditions the mountains throw at you.
Lens - Lumalens Purple Ionized (23% VLT for mid/bright conditions)
Bonus Lens - Lumalens Amber (54% VLT for flat light/overcast conditions)