Proving two is better than one, Duo combines minimalistic design with maximum protection. This two-piece protective case offers exactly what youâd expect from the pioneers in dual-layer technology: slim,easy-handling design with proven protection to defend against annoying bumps and drops that happen to everyone. Made with a new soft touch texture that does not smudge, our innovative Impact Struts technology elevates drop protection to 12 feet, and an antimicrobial treatment that prevents 99.9% of surface bacteria. Duo is the next evolutionary step for dual-layer defense. Dual layer. Double the Protection. Within a slim form, Duoâs exterior shell provides armored defense for your device, while a soft interior layer cradles and comforts your phone from impact. 12 ft. drop protection with Impact Struts technology. Protection tech from automotive and sports industries inspired our Impact Struts in each case, which flex and move to reduce the force of any impact.