We got the Field Guard today, and I must admit I was worried when I first saw it. I followed the instructions though, and we were ready to walk as soon as I put it on her. It took only 50 yards or so before she was into the walk and forgot about her armor. She would occasionally shake her head or bat at it with her front paw, but that subsided. Same thing on walk number two in the evening. The little one has sucked up two foxtails just walking in the neighborhood in the late summer, costing me big $ at the vet. Thanks!