Sprint LG Optimus G Case, Empire Full Coverage Tortoise Shell Case for Sprint LG Optimus G LS970 / E975 Specially designed Full Coverage Tortoise shell Case for Sprint LG Optimus G. Custom tortoise shell pattern with a glossy finish. Precisely engineered two-piece snap-on design ensures outstanding protection for Sprint LG Optimus G. Made of the highest quality mould material for maximum protection and durability. EMPIRE is a registered trademark with the USPTO.