Brooks runs a durable carbon rubber under their rear landing zone and their normal blown rubber for the rest. Based on experience, both Ghost 11 & 12 were the most durable road shoes I’ve ever worn. I ran them for over 700 miles before retiring them into the roles of decorating shoes and garden shoes, respectively.
I have never had a pair of shoes that lasted longer than two years. So when I got my first pair of Brooks Ghost 12s, I was skeptical. But after wearing them for almost three months, I think they are going to outlast any other pair of sneakers I own.