I’ve had an absolute nightmare over the years trying to find decent bike jeans that don’t look like a sack when I’m wearing them. I currently just have a pair of Spidi J-Trackers having bought and returned at least a dozen alternatives; consequently, I find myself wearing regular jeans far too often and it does make me feel a bit vulnerable.
Anyway, I recently discovered the Pando Moto armoured leggings and have been wearing them for a couple of weeks now. All I can say is that they’re completely transformational - lovely and comfortable with the armour secured in just the right place, and I just wear my regular jeans over the top. The ones I have are AA rated for abrasion resistance, although they also do an AAA rated version if you want to take the protection to the highest level.
I can’t recommend these leggings highly enough.