Can doing vertical jump beside weights on be impossible for your knees?

I have a substance vest, and I want to increase my vertical jump. Can doing jump with a weightiness vest on be bad for you knees?Can doing vertical jump beside weights on be impossible for your knees?
That's a big YES!!!
It depends on the amount of counterbalance, if you are trying with 50 pounds after yes defiantly, but I own trained with something like 10 extra pounds for years in an force to increase my vertical, it works and my knees are fine.