Trident Aegis Case Blue for Samsung Galaxy Core Prime Aegis cases are slim and light-weight, but packed with protection. Aegis cases feature an inner-layer of shock-absorbing Thermoplastic Elastomer (TPE) 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. This case Series protects device power-ports and audio-jacks with TPE plugs to keep out dirt and debris. These cases also include dust filters to protect speaker bays, and a self-applicable screen protector for reliable screen protection.