Staying seen is key to preventing an accident. The compact but powerful LED lights contained in AthLights™ keep you visible at night from up to 600 feet away. AthLights have alternating red-white-red LEDs that can alert approaching motorists that you're nearby. Their small size and light weight allow you to wear them without feeling them during training. And, they're not just small - they're also durable. Made from extremely durable materials, the metal housing is crush-resistant.