Putting a hat on a cat is fine to do as long as it’s comfortable and safe. Most cats have a strong sense of personal space and some might be sensitive to anything placed on their heads. They may tolerate hats for short periods or feel stressed or anxious while wearing them. Be sure to observe your cat's reactions. If they seem distressed, remove the hat immediately. Also, make sure it never obstructs your cat's vision, hearing, or movement.
If you do decide to try a hat on your cat, opt for soft, lightweight materials and ensure a proper fit without any tightness. Also, look for one that has quick-release straps or can easily be removed without being a choking hazard. We recommend keeping your pet within your line of sight while it’s wearing the hat and keeping it on for short periods of time only. Especially if your cat is new to your home and you're not familiar with its typical behaviors.