ThunderShirt Sport - Treat Anxiety, Fear & Over Excitement in Style

Millions of Dogs Helped

ThunderShirt is the original, vet recommended, natural calming solution that helps reduce anxiety in dogs in a drug-free way. Like swaddling an infant, our dog anxiety vest's patented design applies gentle, constant pressure to calm all types of anxiety, fear, and over-excitement issues in dogs.

The ThunderShirt is proven to be over 80% effective in reducing anxiety for fireworks, thunderstorms, separation anxiety, travel, vet visits, problem barking and more. Treat anxiety, fear, and over-excitement in style! You’ll love the ThunderShirt’s calming effect on your dog.

Designed for comfort, the breathable jacket features washable, durable fabric with contrasting trim and reflective logos for safer nighttime walks.

Small for dogs 15-25lbs, chest circumference 17-21"
Medium for dogs 26-40lbs, chest circumference 21-25"
Large for dogs 41-64lbs, chest circumference 25-30"