New Match and Well Made --- Breathable Mesh Chest Vest Harness Strap: it’s made of the double mesh fabric with the flannelette edge, attached to four PP material strap, which will absorb sweat and feel breathable when your pet dog wear it. Elastic Safety Seat Belt: it’s made from durable nylon strap to protect the dog which is elastic and adjustable for the car vehicle. Suitable and Humanized Design --- Breathable mesh chest vest harness would relieve the pressure. It is adjustable depending on how much lead way you need to plug into your cars seatbelt it fit perfect definitely.The included seat belt was long enough to let him move in the back seat and lay down. Keeping Safe and Comfortable --- The harness wraps around dog’s body and neck which could be instead of a collar. The straps tighten up securely so dogs cannot roam the car to prevent dogs from hopping into the front seat, but they don't pull against them. Easy to Use and Quick Release --- There are two buckle on the chest part, which make the harness easy to put on and no need dogs to step in. And the four adjust buttons on the harness strap, can be easily adjusted to make dog pals feel comfortable, and suitable for all small, medium and large size dogs, or even kitten cats and medium cats. The seat belt is also adjustable, easy to hook up both in the car and trunk. Wide and Further Application --- The harness can be used as a travel harness in the car to prevent dogs jumping out the window when go driving around. It also can be use a regular harness connects with the retractable dog leash as a regular harness.