Review on Pawtitas XS Teal Lumberjack Padded Martingale Dog Collar With Reflective Band For Maximum Visibility, Comfort And Safety - Fits Small & Large Dogs by Eduardo Long

Runs a bit large. To be fair, let's call it very generously sized. If you measure and think you need the low end of Lg/Xlg, consider buying the Med/Lg which over laps it in fit. Also, the Lg/Xl I got first had no tag loop. The Med/Lg did. There's a good amount of reflective material. Some complain that the whole thing isn't reflective, but what's there is ample. This is a heavy collar, since it's two thick layers all around. It's not discrete. It's effective.