- Size M: about 35-40cm/13.8-15.7 inch(Bust); 120cm/47.2 inch(Leash Length); 3-4.5kg (Suggest Weight) Soft pet dog harnesses chest protector, reflective chest harnesses for better observe at night, practical in use. Vest type design puppy cloth make your pet looks more fashion. Durable and easy to clean. Light weight and comfortable to wear. Breathable and lightweight, your pet will feel no burden when wear this harness. Made of high quality materials for a long time safe use.