Abstract: A package liner adapted to protect fragile articles during shipment, handling and display in retail establishments. The liner is made of an elongated, flexible packaging material, such as a single face corrugated paper pad, having a pair of spaced, oppositely disposed, outwardly bowed lines of weakness impressed across its central width. When the ends of the liner are folded upwardly and flexed into a generally tubular conformation, the area between the lines of weakness assumes a downwardly concave shape. The resulting U-shaped structure is adapted to receive the article therewithin and cushion it against breakage when the package is dropped or exposed to lateral shock forces.