Bandwidth 1.0cm for S size and 1.5cm for M/L size.S size bust: 27-35cm, neck: 20-26cm, recommended weight: 1-3KG;M size bust: 34-44cm, neck: 26-33cm, recommended weight: 3-6KG;L size chest: 47-62cm, neck: 33-40cm, recommended weight: 6-9KG Safe harness vest: the chest strap of the dog prevents your pet from running wild or falling down the pedestrian, prevents your dog from getting lost on the road. Keep your dog safe. Easy to use: with Velcro fastener, easy to put on and take off. The tensile pressure is evenly distributed across the body to prevent pulling and choking. A comfortable dog harness that is easy to adjust and put on. Reusable and durable: our cat chest strap can be used repeatedly and permanently. Suitable for cats or small medium dogs. The dog harness vest is bright colours that ensure you have a harmonious and happy atmosphere with your pet dog or cat. Stylish design: designed with the floral print, it looks fashionable and beautiful and makes your pet look more beautiful and attractive. High quality: Our chest strap for dogs is made of cotton blends, is safe and non-toxic, odourless, breathable, soft and comfortable and lets your dog love to wear