Checker/White/Blue 4.5x6.5-in Pocket ID Has A Velcro Closure. 1-in Elastic Band Fastens Around Arm. Reflective Colored Front & Subdued Camouflage Backing. ANSI/ISEA 107-1999 Microprism Retroreflective Material is welded onto a vinyl backing that reflects well in the rain and is easy to clean, because all seams are welded, not sewn, to keep water and dirt out of the microprisms, which would lower the reflection. Daytime Colors Are Reflected At Nighttime. Metalized Microprism Reflectors Make Checker Colors the Brightest.