Originally Posted by Lazyass

Thread count, aka TPI. It's listed in the specs of a tire. A tire with a higher thread count, like 120 and above, would be a more supple tire than a 60TPI tire because there's more thread and less rubber in the carcass and makes it more flexible, it will conform to irregularities in the road better. And it will be lighter. And more threads tend to work as a form of puncture resistance.

Originally Posted by Lazyass

I didn't say "better" resistance to punctures. But they do provide some measure of puncture resistance which helps when the rubber carcass is thinner.