My big and beefy city dog is an expert at harness escape. He has learned all the tricks of backing out of every harness I have purchased. Finally, a real solution! Although this harness is intended for hoisting dogs on bigger adventures than a walk down the street, the 100% confidence I now experience knowing that my dog cannot wrestle his way out of this one makes it perfect for us. I highly recommend it if you, like me, have an evil genius on your hands.