I have destroyed three Tredsafe shoes, each one lasting a shorter amount of time despite me working the same hours or even less. I bought a pair of asics gel ventures on clearance for $15 more than the Tredsafes and they lasted me many years.
Begging all these new guys who are joining the manual labor force to not get the Walmart steeltoe boots because you're saving $100. You will feel that $100 saved 30 minutes into digging that hole. Just buy the Carhartt boots bro.