I got a pair of NFPA rated red wings for wildland firefighting. Two months in and the heel on one blew out. The soles are fine, the rest of the boot is fine, but the heel is fucked.

I've yet to find long lasting boots for my type of work. And I just can't bring myself to dropping the massive cash for Nicks. I'm probably just going to stick to military surplus and buying second hand quality boots :P