The purpose of this study is to investigate fragment clouds generated by hypervelocity impacts (HVIs) on metallic meshes. The HVIs tests have been conducted with a two-stage light gas gun facility at Kyushu Institute of Technology. Projectiles were launched at 3 km/s. Radiographs of the fragment cloud generated by the impact of the projectile on the mesh were taken with three flash X-rays. As a result, it was found that the velocity of the fragment cloud at the cloud center of gravity was up to 35% slower than the impact velocity of the projectile.