To start off, they do fit will. But no matter how much I tighten them, I cannot get them to stay in place if he’s running or shakes at all. I tried pairing them with a set of glasses and it helped a little

My dog and I recently moved to Alabama, and neither of us were prepared for the frequent thunderstorms. She's turned into a quivering, trembling little ball of fur. CBD is super short lasting for her. The Thundershirt doesn't help. I was at my wit's end. Tried these on a longshot. They seem to be well made, and fairly easy to adjust. Love the case they came in. She'll let me put them on, and will leave them on until I turn my back. Then she's got them off in a split second. She doesn't seem to hate them, but doesn't love them either. Wish they worked better for her.