Have had a set of these for a few months now pretty impressed so far really well made a definite upgrade on the launch pro’s they replaced – didn’t bother with the zip version couldn’t see the point never take pads off during a ride and just something that could fail
Like SAS-TEC knee pads which are a kind of hard memory foam that shapes to you knee as they warm-up
Really Comfy and no rubbing from the get go have done up to 40km rides in them – been in the washing machine a couple of time a week no real signs of wear & tear
Size wise followed the sizes chart got large set (usually i’m medium every thing else)
Only thing have noticed is do get a bit of knee sweat