OVERVIEW The EFM Alta Case Armour with D3O Crystalex range boasts superior clarity, purity and simplistic beauty synonymous with the Scandinavian wonderland. Integrated Antimicrobial protection and D3O Crystalex throughout the inner case to give your device military grade impact protection from daily knocks and drops so you can enjoy your device for longer. Antimicrobial coatings on the case kills up to 99.99 percent of bacteria preventing further growth during its lifetime.