Ballistic SG Black Silicone, Black TPU, and Black PC for HTC Thunderbolt - 1 Pack - Case - Retail Packaging
The Ballistic SG Series case offers three layers of protection.The first and outermost layer is made of soft TPU which will help absorb the shock of a drop.  In addition, this first layer is co-molded onto layer number two, which is made of a tough impact resistant polycarbonate.Last but not least, the third layer, which is the inner-most layer, is made of a soft silicone.  This layer also includes Ballistic corners, which means all four corner have extra shock absorption where you need it the most.  Features:3-layers of protectionSoft TPU skinImpact resistant polycarbonateBallistic corners for ultimate drop protection