Do they have openings for the knee cap?I go slightly below parallel. Just hit 3x315. I use knee sleeves.
It's better for your knees to go to parallel at the minimum. Anywhere above that and you get shear forces that do damage. I had knee pains until I started going lower and using sleeves.
I used to use neoprene knee supports(wraps or whatever you call them). They keep the joint warmed up.