Microsoft Lumia 640 (Cricket/T-Mobile) Case - Impact Resistant Hybrid Dual Layer Armor Defender Protective Case Cover for Microsoft Lumia 640 [Drop Protection/Shock-Absorption] Constructed of high-quality polycarbonate and TPU material with uv coating smooth finish Stylish And Slim Accessible to all buttons and functions. Precisely cut and fit Dual Layer Protection: Inner silicone for absorbing shock absorption combined with a hard polycarbonate shell easy installation