Motorola Edge 20 Pro Back Cover: Premium protection that your premium smartphone deserves. These covers are made of materials such as TPU, polycarbonate, or silicone and thus feature great shock absorption, thus protecting your device from drops, scratches, and daily wear and tear. Some back covers have raised bezels around the camera and screen for extra protection during impacts. Most of these covers are slender and lightweight, and there is extra care that the phone does not get unnecessarily bulky while retaining its sleek profile. Most of these covers come in design options that include everything from transparent, minimalist designs to textured and rugged ones for functionality with style.