Each style of ThunderShirt® is lightweight, machine-washable, and breathable, and they all help your dog to feel calmer during fireworks, thunderstorms, travel, vet visits, and more! ThunderShirt® is the original, vet recommended 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 many types of anxiety and fear issues in dogs. 80% of ThunderShirt® users see improvement in their dog’s anxiety when using ThunderShirt®. ThunderShirt® is recommended for thunder, fireworks, separation anxiety, travel, & vet visits. Treat anxiety and fear in style! You’ll love the calming effect of ThunderShirt® on your dog.