One M9 Case, Trident [Blue] Aegis Series Slim & Rugged Hard Cover Over Silicone Skin Dual Layer Hybrid Case w/ Screen Protector for HTC One M9 Bio-Enhanced Hardened Polycarbonate Exterior: drop-tested 26 times onto concrete from 4 ft. (average height dropped from by owners) Inner Impact-Resistant Silicone: double-thick silicone corners, along with anti-skid pads, protect the device from impacts, while giving extra protection to fragile impact zones. Silicone plugs, dust filters, and included clear screen protector keep moisture, dirt, and debris away from your device. All materials are 100% RoHS compliant and meet Military Standards MIL-STD-810F! Degradable, compostable, and recyclable.