Octane for iPhone 5/5s/SE Frost/Neon Pink. Incipio's impact absorbing Octane™ Case is precision engineered with a rigid Plextonium™ polycarbonate back shell and a shock absorbent Flex2O™ TPU textured bumper. Finished with a frosted transparent back and contrasting colorful bumper, the Octane™ Case takes protection to the next level.