MyBat ASMYNA Huawei M931 (Premia 4G) Luxurious Lattice Dazzling TotalDefense Protector Cover - Retail Packaging - Purple/White The Total Defense line is well-known for providing three layers of protection including a soft silicone interior, hardened shell, and a decorative lattice-patterned exterior! Studded in rhinestones, this is a wonderful cover and complements many fashion styles. A shock-absorbent band of silicone protects the entire perimeter of the case and improves grip.