I bought a truck recently and it came with tires made (partially) with [Kevlar](https://en.wikipedia.org/wiki/Kevlar).

What advantages do Kevlar automotive tires have over tires made with more traditional materials?

Reading through [DuPont's page on the topic](http://www.dupont.com/products-and-services/fabrics-fibers-nonwovens/fibers/uses-and-applications/tires-rubber-goods.html) is not very enlightening: it has a lot of fancy, vacuous words that do not give much in the way of practical information.

I read [a review of a Goodyear tire with Kevlar](http://www.moderntiredealer.com/article/312224/goodyear-launches-all-terrain-adventure-with-kevlar) but it talks about the tire as a whole, which includes some other aspects which set that tire apart. It does not give a clear indication of how the Kevlar sets the tire apart from other similar tires.

Given two tires, one reinforced with Kevlar and another that is not, what tradeoffs would there be between the two tires? How are they different? Why would I, as a driver, choose to put one or the other type of tire on my vehicle?