For Kyocera Hydro/C5170 HYBRID Silicone/Hard Net Case Black/Black Soft silicone skin on the inside and hard rubberized plastic with added perforation on the outside. Edges are reinforced for more protection. Rubberized finish provides better grip. 2 Tone coloring provides a more stylish look! Pre-cut openings allows full access to all of the Kyocera C5170 Hydro's functions.