Same answer as last time. The Levi's 511 commuter jeans. Have not needed to shop in a few years but last time found them at Macy's. The labels had changed, they no longer had any bike branding. But they still had the stretchy fabric, reflective piping inside the cuff, reinforced crotch, the disguised u-lock holster. Same problem as ever with fit because the various colors are made of pretty different fabric. That was two or three years ago now. No idea if they are still around.
https://www.levi.com/US/en_US/clothi...ns/p/191510034
https://www.levi.com/US/en_US/clothi...ns/p/191510059
Top-loading, not side-loading pockets are pretty important so stuff doesn't fall out, and if they're too big they flop around your hips. If you like getting stuff out of your rear pockets, it's nice if they don't have zippers or buttons. In other words, jeans not khakis.
They are cotton. I don't usually set out in the rain, though don't worry if there's some in the forecast. It's temperate here.
In past years in the winter I've worn snowboard pants over my jeans. It has not really gotten that cold here lately.