I have a 30 year old CHP leather jacket that I would definitely consider armor. This thing is super thick, it must weigh 40 pounds. It's winter use only. I also have a Joe Rocket Phoenix 4.0 mesh jacket, which has removable armor in all the right places. But here in the 120 degree heat of Phoenix, AZ summers, staying as cool as possible and sunburn protection take precedence over armor. I have become disoriented in the heat more than once, and that is extremely dangerous. So I usually wear jeans and an MX jersey here in the summer. I prefer to dress to avoid crashing than to dress for crashing.
I am not a fan of plastic or cordura bike gear. The abrasion resistance is rubbish, I've seen tests. And I've heard of third degree burns as a result. Plus it doesn't fit as well as leather. Which means doesn't hold the armour in the correct place, which is pointless. I was always taught, fit on motorcycle garments is very important. Ask any decent older shop rep about this.. No thanks to Cordura!