tmthwrote a review of Dublin Dog EcoLucks Gravity Dog Collar on November 2, 2014
Familiarity: I've put it through the wringer
I really like the collar overall. I purchased it for my dog almost 2 years ago and it has worked well-- I have two complaints though. First, the color has faded a lot, especially in the past year. It is no longer bright blue but more worn out. The attached photo was taken last year; couldn't find any better more recent ones. The second issue is that the color doesn't like to stay tight. It takes periodic adjusting to be snug. My dog can slip out of the collar if its not tight and while I rarely have him on leash it is inconvenient when holding him by the collar.
I do really like the width (wider than most collars) and I like the fact its made out of recycled plastic. No matter how bad my dog stinks, this collar does not smell at all. It is easy to clean. I prefer the other types of Dublin Dogs collar material, I just wish they made them wider.