Otterbox Symmetry Sundance Iphone8 77-56669, Black, One-Piece Design, Dual Material Construction, Synthetic Rubber Interior, Polycarbonate Shell, Raised Beveled Edge, Back cover, Protection Drop-proof. The OtterBox Symmetry Series Case for iPhone 8 in black is a one-piece case made from two materials. Construction incorporates a synthetic rubber interior and an external polycarbonate shell for everyday protection.