I was wondering what some of your favorite "under the jersey" chest protectors are??

I want to get a chest protector that goes under my jersey. Price doesn't really matter, as long as it is under $150 (there aren't many over that). I was looking at something like the Thor Impact Rig (not the full suit) but the big plastic back panels look really uncomfortable and looks like it would be hard to move. I also wouldn't mind a foam protector as long as it had front and back protection but it seems it would not save you as much as the plastic protector when you actually are falling on rocks and such? Last i was also looking at the thor Quadrant protector because you can wear it over or under the jersey but i don't like how it has no shoulder protection. So what do you think would be the best way to go for an under protector? Thanks!