Otterbox Commuter Case 77-81235, For Samsung Galaxy S21 Ultra, Black, Polycarbonate, Synthetic rubber, Protective back cover, Thin, pocket-friendly case slips, Dual layer, soft inner slipcover and hard outer shell. Get moving with Commuter Series, the slim, protective Galaxy S21 Ultra 5G case that keeps your phone safe from drops and bumps. Additionally, a silver-based antimicrobial additive is integrated into the case that helps inhibit microbial growth and defends.