Trident Aegis Series Smartphone Cases - Samsung Note 4 (Black) Aegis cases are slim and light-weight, but packed with protection. Aegis cases feature an inner-layer of shock-absorbing silicone with an outer-layer of hardened polycarbonate, providing two layers of protection. The hardened polycarbonate exterior allows it to slide in and out of pockets with ease. Aegis cases feature hardened bio-enhanced plastic that is recyclable, degradable and compostable, making it truly eco-friendly. Aegis cases meet Military Standard MIL-STD-810F for Vibration and Drop (Independently Tested)