fit and the fleece lining ensures the dog is comfortable at all times without any uncomfortable rubbing across their chest. The harness also features a 3M reflective strip to increase the visibility of your dog and enhance their safety no matter the time of day. Simple and easy to fit and use, the Comfy harness comes in 8 sizes and one colour, red and black. Size Guide: Chest Size - Typical Breed Toy 42 - 50cm Chihuahua/Minature Dachshund. 48 -55cm Shih Tzu/Jack Russell. 52 - 60cm Westie/Min. Schnauzer. 58 - 70cm Beagle/Spaniel. 64 - 80cm Collie/Brittany. 70 - 90cmLabrador/Pointer. 74 - 100cm GSD/Rottweiler. 84 - 120cm Great Dane/Newfoundland.