LED Safety Vests. Polyester day glow orange or green vest. Lightweight and breathable fabric offers long use comfort. LED array sewn into front and back of vest increases worker visibility. LEDs operate in fast or slow strobe mode or constant on. Battery pack and LED speed controller fits comfortably into interior pocket. LED Safety Vest is DOT approved. Most important, LED Safety Vests keep individual’s working along roadsides, parking lots, and construction sites highly visible to vehicle traffic.