RuffWear is always thinking of ways to make our dogs safer during their active pursuits. Their latest innovation is the illuminating, high-visibility, Glow-in-the-Park technology (1000 ft./300 m visibility). If reflective accessories promise improved visibility, Glow-in-the-Park technology sets a new standard with lighted-visibility. The technology uses a compact battery-pack to illuminate bright blue flexible wires running along the sides of this orange and yellow dog vest to keep your pal in sight-especially important in conditions where reflective materials can't be seen. For added visibility, the contrasting colors and reflective trim of the Lighted Lab Coat stand out in a range of light conditions. This durable and great-fitting safety vest gives you peace-of-mind knowing your dog will be easy to spot in rural and urban settings, night or day when you take him out for walk or run!