We upgraded from a service dog harness we found on Amazon to this. As Dottie (my service dog) grew, the vest we had gotten previously wasn’t fitting right. Then we came across these from Ruffwear. Since we already had a Ruffwear harness, it was an easy decision to go with this. One drawback, the back clip works, but the service vest squishes forward a bit. It’s ok, but I would love to see a grove to allow the leash connection. We are no longer getting questions and everyone can clearly see she’s my service dog. Love it!