I run a landscaping company, so I'm constantly researching the toughest clothes, tools, ect....As far as pants go -- super comfy, great utility of pockets (hammer loop, side leg wrench pockets, ect...)!  But, regarding work, definitely be wary of buying these. The fabric shredded on the bottoms as I was cleaning gutters for 2 hours (I had the pants for 3 weeks & only wore them 4 times.....The pants are NOT tough material. Go for the SANDED DUCK material pants for extra durability & longevity. If you want something more casual (i.e. just going out to run errands & meet with customers for estimates, these pants are great for that.)
Final words:  Great design, comfortable -- NOT tough material, go sanded duck for grueling labor work