Do you have to buy the 509s in clear? I can't see where you can get them with anything else without paying more. And is their blue a light blue like the Oakleys? I love the light blue for all conditions. I have found Amber lens goggles too dark at night. You can still see but not as well as with the light blue lens.
Honestly the only thing I would like to have about the 509s is the added foam. I had a mild spot of what I can only describe as frostbite where my goggles didn't seal between my goggle sides and helmet. Other than that, they don't fog unless I do something stupid like breath right in them, clear quick, and I can see great.
Mine came with the Chrome/Amber (Orange on their website) lenses in them. I think that is the standard lense in all of the 509 goggles. You can order the blue as an additional lense.
Jim