Those are actually trials tires that leave a lot more tread on the ground than Knobbies. They are better on the street than knobbies and are pretty decent out there. Decent rain tires, but the rubber (brand) can make some significant difference in traction. Unfortunately, I haven't run any of those in probably 40 years, so I can't really say what the best/worst ones are. I used to use Dunlops, but I don't know whether they still make them or not.
Bare