Smith Momentum Photochromic Sunglasses in Black / Photochromic Clear To Gray

From SteepandCheap.com

What Our Gearhead(R) Experts Are Saying:"I hit a switchback climb with my head tipped back further than I usually ride, and for the first time in years, there was no black bar cutting across my eyebrows. The toric lens curves up and over instead of stopping short, so my whole field of vision stayed open through the turn. That half-frame shape is the reason I stopped noticing I had sunglasses on at all."A three-hour ride rarely holds the same light for long, and swapping lenses mid-climb ruins momentum most riders would rather keep.