The Lumenglow High-Vis Jacket boosts visibility of your dog in both daytime and low-light conditions. With reflective paneling that shines bright, Twilight Gray. The durable shell offers light weather protection and includes a leash portal for wearing over a harness. Side-release buckles make it an easy on/off piece of gear that'll have you confidently extending your adventures into dawn and dusk. Size Medium Fits 27-32 inch girth