An accessory device is described. The accessory device may include a base region and sidewalls that combine with the base region to secure an electronic device with the accessory device. The accessory device may include a rigid layer having openings in at least some corners of the rigid layer. In order to facilitate insertion and extraction of the electronic device, an elastic material disposed in the openings may join with two sidewalls at the corners, allowing the sidewalls to move or bend with respect to other sidewalls. The accessory device may include a protective layer embedded in a sidewall to provide support to an opening formed in the sidewall. The sidewall may include a protrusion supported by features embedded in sidewall to facilitate pressing the protruding feature, which corresponds to pressing a button of the electronic device.