Abstract: A corner protector is provided for insertion between a shipping container and a packaged article generally at points likely to be impacted during shipping and storage to prevent or reduce damage caused to the article. The protector includes an inexpensive and lightweight outer shell which provides adequate cushioning for the packaged article against many types of compressive loads, and an impact resistant inner plug which is more pliable and has higher structural integrity than the shell. In one form, the shell is preferably constructed of an expanded polystyrene material having an inner tapered aperture, and the plug is preferably constructed of a molded polyethylene copolymer. The plug seats within the aperture and cooperates with the shell to form a tetrahedrally shaped corner protector having the plug at the apex to absorb an impact directed toward the protected corner of the article if the container is dropped or mishandled.