Kraken A.M.S. includes a tough exoskeleton, featuring hardened polycarbonate and over-molded shock-absorbing TPE, providing a stylish and rugged surface for maximum protection. Impact-resistant Thermo Plastic Elastomer (TPE) corners of the case protect your device from accidents. Kraken A.M.S. includes TPE lining on the inside, with a hardened polycarbonate exterior, making it less susceptible to wear and tear, and easy to get in and out of pockets.