Fosmon DURA Frost SLIM-Fit Case Flexible TPU Cover for HTC One / M7 - Purple Compatibility: HTC One M7 - All Carriers. SLIM-Fit design lets your showcase your HTC One by keeping it sleek. Frosted finish gives your HTC One a smooth and comfortable feel. Allows convenient access to all functions, cameras, buttons, ports and slots. Material: Durable and flexible Thermoplastic Polyrtethane (TPU).