my newest pair of riding jeans (purchased last year, not yet worn) is slimmer fitting like the image in Stig's link. I tried putting my thick D30 level 2 knee pads in there but they are way too bulky to fit well. My plan is to go to the D30 Ghost armor (thinner version) for both knee and hip.
Let us know what you decide for armor and how it works.
BTW: I wear armored riding pants on every ride, with armored hi viz jacket, armored boots, leather gloves, and full-face modular helmet.
**The RIPPL yellow pads (knee & hip) which came in the new jeans are
CE aaa rated ("impact/abrasion protection")
The orange Klim D30 pads are
CE Level 2 rated. The Klim pads are slightly larger than the yellow pads. Both fit in the armor pockets.

I'll be using the Klim pads.
Stig
** do I get hot?
Not at dawn - my every ride starts in the dark!