Abstract: An improved containment system is disclosed which absorbs the collision energy of a vehicle about to strike a hazard. In the system, a block of flexible foam material having near-perfect total recovery after compression is placed adjacent a hazard. A first side of the block faces toward anticipated oncoming vehicular traffic. A fabric sheath capable of withstanding a substantial collision shock covers the first side of the block. On a second side of the block there is a resilient support member which receives transmitted impact energy from the sheath and block.