Why slim fit work trousers make sense on site
Most work trousers are still cut like they were in the nineties: wide through the thigh, baggy below the knee, and finished with a hem you end up standing on by Wednesday. That cut was never about doing the job better. It was about fitting the most people with the fewest sizes.
Slim fit work trousers fix the bits that actually annoy you. Less loose fabric means less to catch on ladder rungs, scaffold clips, rebar and the edge of a joist. Nothing flapping round your boots when you're on a roof. Nothing dragging through wet plaster or mortar. And because the fabric sits closer, knee pads stay where they should when you kneel instead of sliding round to the side of your leg.
The catch is that slim only works if the trouser moves with you. A slim cut in a stiff, non-stretch fabric is miserable the first time you squat to a socket or climb into a loft hatch. That's why every Tauro trouser has stretch woven through the whole fabric, not just a panel sewn into the crotch.