ThunderShirt is the original and #1 vet recommended dog calming wrap. By applying gentle, constant pressure, ThunderShirt's PATENTED DESIGN calms all types of anxiety, fear, and over-excitement issues. ThunderShirt is easy-to-use and adjust for just the right pressure to calm your dog, and there is no training required. Already used by millions of dogs, ThunderShirt helps to calm in over 80% of cases surveyed. It is recommended for thunder, fireworks, separation anxiety, travel, vet visits, problem barking, reactivity, and much, much more. 89% of ThunderShirt users see improvement/reported seeing improvement in their dog’s anxiety when using the wrap. All shirts are machine washable, made with soft, breathable fabric.