I ordered a thundershirt for my small bichon dog who is afraid of storms and since we have had such little rainfall, and Thunderstorms this summer, have only had one occasion to use it and it worked great. Candi was prone to hide under my computer desk and scratch the floor and wimper continuously. The one occasion I put the thundershirt on her, she slept on her bed and while she didn't go to sleep, she remained quiet, so I recommend them and have told our Vet how good it worked. She said she wondered if they worked and was glad to hear they do.