Best TPU Case for RAZR is the Nillkin. You can find on eBay (like THIS). (Make sure to search for "Nillkin TPU Razr" because Nillkin makes hard cases as well.)
Case comes in solid matte black and transparent blue, clear, or gray. Grips on side. Precision cutouts for everything. High-quality without the seams or "nubs" present on other TPU cases. Adds almost nothing to profile or weight of phone, but protects phone.
Takes about 2 weeks to receive, but worth it! I got the transparent gray, which allows the good-looking Kevlar back to show through.
What was disappointing, was that it fits really loose in the car dock that I just purchased. I guess I shouldn't have expected for it to fit snug like the verizon silicon cases.
This should be an easy fix for it to fit snug though. So far I am using double sided tape (padded type) as a padding to hold the phone snug in the dock. So far it's working okay until I figure out a more permanent solution.