Might I suggest Belleville 550ST's if you live in a warmer climate I'm not military but I have a pair that lasted me about 3 years of daily use and I only replaced because the sole was craking and the heel wore through there about 130( pre inflation) to 180

I've worked HVAC, cabinetry and landscaping I do think there more durable then most and they are my oldest set of work pants but I perfer my Duluth and my Wolverines more mostly due to the cut of the pockets and depth it's just easier to get my knife and wallet out. My Dickes are at least two years old and while they look worn they hold up alright