Abstract: Disclosed is a customizable protective covering for a portable electronic device. The protective covering includes a main sleeve portion which is inserted over the electronic device and which contains apertures therein to allow continued access to portions of the electronic device. A groove is formed around the perimeter of the sleeve portion and a removable band is inserted into groove and acts as a bumper. The bumper may be flush with or offset from the perimeter of the sleeve portion. The combination of the sleeve and bumper is customizable. Further customization is provided with a cling which can be statically adhered to the electronic device. The cling can cover one or more of the portions of the electronic device with ornamental designs. An accessory management system is attached to the sleeve or bumper, around which a cord can be wound and securely maintained.