SYSTM is the name of Incase's new brand dedicated to making protective iPhone cases. They've started off with five different designs combining polycarbonate, rubber and/or foam, and while all of them look neat, I do wish they'd done a better job helping the viewer understand what differentiates one design from another, functionally speaking.
If the difference between each model is just aesthetics, it'd be easy for buyers to subjectively pick what they like; but the descriptions of each of the five designs are sprinkled with enough technical jargon—"Internal Poron XRD extreme impact protection back" vs. "Raised impact points" vs. "Air rail technology"—to imply there are defined performance differences distinguishing one materials choice from the other, and those are never really made clear.
Even more confusing, one model is noted to feature "Direct access to all device features." The others lack this description, so it's not clear if they lack that functionality; the bullet points for each design do not seem to match, on a categorical level, with the bullet points on the others.
This being Incase, I'm sure the designs themselves are solid; I just hope they'll eventually communicate the designers' intent a little more clearly. Check 'em out for yourself and see if you can make more sense of it.