Cat Size Guides

Find their everyday fit

Measure first. Adventure together.

Our harnesses and pet carriers are designed for small companions. Choose by your cat's measurements, not breed or weight alone. Each style has its own size information.

Harness & leash sets

  1. Neck: With your cat standing naturally, measure around the base of the neck where the harness sits. Keep the tape flat without pulling it tight.
  2. Chest: Measure the widest part of the ribcage, just behind the front legs. Measure twice for a consistent result.
  3. Compare both measurements: Open your chosen product's size chart in the product images. Both neck and chest must fall within the size's adjustment range.

If a measurement is at the edge of a range, contact us before ordering. A size label such as Small or Medium is not interchangeable between styles.

Choose your harness

Pet carriers

  1. Body length: Measure from the base of the neck to the base of the tail.
  2. Height: Measure from the floor to the top of the head while your cat stands naturally.
  3. Weight and space: Compare your measurements and current weight with the carrier's listed dimensions and capacity. Your cat must have room to turn around and lie down comfortably.

Help your cat get comfortable

Start with short, calm indoor sessions and let your cat approach the harness at their own pace. Adjust it so it feels snug without pressing into the neck or chest. Check that your cat cannot back out, and supervise every use. A harness is not escape-proof.

For a carrier, introduce it gradually and attach any internal safety tether to a well-fitted harness. Airline rules vary; check your carrier dimensions with your airline before travel.

Need help choosing?

Contact Us with the product name, neck and chest measurements, body length, height and weight. For canine companions, see our Dog Size Guides.