Abstract: In one embodiment there is provided a protective case for an electronic device. The case has a substantially transparent planar back surface. The substantially transparent planar back surface is made from a compostable biopolymer material configured to form a rigid back surface and wherein the substantially transparent planar back surface has a terminal outer periphery edge. An outer bumper formed into a continuous side wall extends transversely from the planar back surface. The continuous side wall has an inwardly extending edge such that the outer bumper is configured to form fit around an electronic device. The outer bumper is made from a compostable biopolymer material configured to form into the outer bumper that is softer then the rigid back surface, and wherein the outer periphery edge of the transparent planar back surface is over-molded into the outer bumper.

Abstract: In one embodiment there is provided a protective case for an electronic device. The case has a substantially transparent planar back surface. The substantially transparent planar back surface is made from a compostable biopolymer material configured to form a rigid back surface and wherein the substantially transparent planar back surface has a terminal outer periphery edge. An outer bumper formed into a continuous side wall extends transversely from the planar back surface. The continuous side wall has an inwardly extending edge such that the outer bumper is configured to form fit around an electronic device. The outer bumper is made from a compostable biopolymer material configured to form into the outer bumper that is softer then the rigid back surface, and wherein the outer periphery edge of the transparent planar back surface is over-molded into the outer bumper.

Abstract: A modular mobile device accessory, comprising an inner protective case sized, shaped and configured to be fitted by hand to a mobile device to protect the device from impact; an outer protective case sized, shaped and configured to fitted by hand on to, and removed by hand from, the inner protective case; whereby a level of impact protection, and a size of the device with the accessory, can be selectively varied.