Dog harness and lead set: The lead is detachable, and you can put it on if you are walking with your dog. If you want the dog to run alone, you can remove the lead. Breathable and comfortable harness. Soft mesh material to make your pet feel comfortable. It is suitable for any season throughout the year. Adjustable: The adjustable clip on the back of the strap allows you to adjust the size appropriately. Good design: Comfortable, padded neck opening. Multiple choices: XS, S, M sizes, for different sizes of puppies and dogs.