Comfortable knee pads for grappling?

I cant find any comfotable knee pads for grappling, I was hoping someone here might know of some. I find that the ones I used are a little thick on the sides so when I sit down on my heels it really pinches the sides and causes discomfort. Any suggestions?

Any how it is important.

The wrestling ones made by asics are great

Sorry this post is way late - but from personal experience I like the McDavids. I have a bad left knee and find these protect my knees well. Other brands I have used are the Brute neoprene ones with protective gel