I have an older model Demon Flex Force Pro - Men's Medium, that I'll sell for $50 + shipping. I also have an excellent condition Skeletools Medium vest that I replaced the rib pads with d3o - I'll sell that for $70 + shipping. Here are the photos
Demon Flex Force Pro (you can see it has removable segment spine plate, removable hard caps on the shoulder and elbow, and padding on the ribs, and clavicle area). It also as two zippered pockets in the front. The back has compression strap to tighten the jacket to fit better if you are skinny.
Skeletool (foam rubber with plastic laminate, mesh construction is very breathable - cool enough to wear in +80 degree weather)