Back then and today workwear is where it's at. Not reflective vest type of workwear, this kind of stuff. Comfy, durable, cut that prioritises function but doesn't ignore style (maybe unsurprisingly companies like it when their employees have a bit of drip), and unless the company sold out to fashion you're not paying extra for the brand (unless it's Engelbert-Strauss which is construction site Gucci. I mean it's still solid and functional it's just not worth the premium). Also available without cargo pockets if you insist, look for companies catering more towards service jobs than the trades.

Pretty much only downside is the lack of colour options. Be careful when thinking about dying stuff many synthetics don't dye well or at all, even when the fabric is pure cotton the thread is definitely polyester. Or even silica.