I did a lot of research on body armor when I went back to a dirt bike and the Klim is what won out, especially in rib protection.
The vest has soft armour next to your body and then hard, and a very tough mesh on the outside. Here is a link.
http://www.klim.com/en-us/shop/moto/armor/3097-000
The vest does not have D30, and I'm not sure what it does have. I talked with the owner of Tecvest and we discussed D30. After the talk, I was convinced it was good.
I was going to go with the Rokgardn pressure suit, but the Klim won out.. lol I've only used it on two rides, one in Big Bend, and the last one with a high side.
I was never hot in the vest and I can unzip it and take it off in a second. The shoulder protectors are really nice. The only part I don't like is the top of the shoulder. Although as one person put it, the way I got hit by the bike, it still did a pretty good job. I would like to see a layer of D30 there. I'm going to talk with the owner again, when my head is up to it, and go over what happened and what changes could be made, if any.