Thundershirt For Cats Great for calming cats during vet visits, groomers, travel, or with general anxiety problems Easy to create a snug, comfortable fit which is essential for its effectiveness in treating anxiety Attractive, durable fabric that resists collecting hair. Machine washable for when necessary and it lasts at least the life of the initial user Large size for cats with chest size 17" up to 24" and greater than 13 lbs (adjustable)