How to Choose the Right Collar for Your Cat or Dog
Breakaway or buckle? Collar or harness? How to pick a collar that fits, keeps their tag on, and keeps them safe.
By Tailswatch Team · 9 October 2026 · 1 min read
Quick answer: Cats should wear a breakaway collar that releases if it gets caught. Dogs need a flat buckle collar for their ID tag, and many do better on walks with a harness. For the right fit, you should slide two fingers under the collar.
Cats: always breakaway
Cats climb and squeeze through gaps. A breakaway collar pops open if it snags, so your cat can't get stuck.
Dogs: collar and harness
- A flat buckle collar holds the ID tag, all day.
- A harness is gentler for walks, especially for dogs that pull, and flat-faced breeds.
- Many vets and trainers advise against choke and prong collars.
The two-finger fit test
Slide two fingers under the collar.
- Too loose: it slips over the head.
- Too tight: it rubs and hurts.
Check puppies and kittens every week or two. They grow fast.
Materials
- Nylon: light and affordable.
- Leather: strong and soft once worn in.
- Reflective: good for evening walks.
Keep the tag secure
A collar is only useful if the tag stays on. Check the ring every few weeks.
Coming soon: Tailswatch collars, made to pair with your tag. Be the first to know.
Read next: What to put on a pet ID tag · New pet checklist
FAQs
Are collars safe for cats? Yes, if it's a breakaway collar that releases when caught.
Collar or harness for dogs? Both: a collar to carry the ID tag, and a harness for walks.
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