TPU Rubber Skin Case Compatible with HTC EVO 3D, Frost Dark Purple S Shape Keep your HTC EVO 3D safe and protected in style with this TPU rubber skin case accessory. Slip your cell phone in to add a splash of color. Deliver instant all around protection from scratches. Constructed from smooth, treated rubber that resists dirt and stains. Unique design allows easy access to all buttons, controls and ports without having to remove the skin. TPU, also known as thermoplastic polyurethane, is more cut and tear resistance over rubber.