Abstract: A vehicle bumper assembly 10 including a reinforcement beam member 12, a cover 20, energy absorbing foam 22 and a material 18 which has a relatively low coefficient of friction and which is disposed between member 12 and foam 22. Material 18 allows foam 22 and cover 20 to move longitudinally along member 12 during an "offset" collision, thereby reducing the likelihood of vehicle damage and passenger injury.