We have used Ruffwear, the Front Range collars and harnesses in particular, will all 3 of our dogs for year now and love them.
First, they wear very comfortably. Other harnesses and collars have irritated our dogs or made them scratch. Since converting to the Front Range, all of irritation has been removed.
Second, they are super durable and easy to clean. Two of our dogs have had theirs for 4+ years and they are still in great shape. Our puppy is working her way up in sizes but have had no issues with her's so far.
Lastly, they have great color combinations to match your dog's personalities. And all of the collars come with a rubber tag to put in between their dog tags on the metal loop of the collar. Its optional but we love it. It keeps their rabies tags from rattling with their name tag and jingling whenever they move. It a lot less noise when your sleeping if your dogs sleep in the bed/room with you like our 3 do.