BINGPET BB5001 Soft Mesh Dog Harness Pet Walking Vest Puppy Padded Harnesses Adjustable, Yellow Extra Small Extra Small - 9"-13" chest girth / 8.5" neck girth.Please measure your pet as attached picture Best selling soft air-mesh dog harness,100% polyester,quick release buckle & adjustable chest belt. Great for walking, running, hiking and all outdoor activities, maintains your dog's natural movements Bingpet harnesses provide owners with a secure, comfortable, and controlled way to walk their pets Please notify that neck area (upper strap) is not adjustable.Some customer gave the feedback that the harness is smaller than store size,you may need to order a size bigger if your pet's size is at the end of border