Personalization: This personalized dog harness allows for customization with your dog's name or other identifying information. This can be useful in case your dog gets lost, as it helps people identify them and contact you as the owner. Comfortable:The nylon fabric material is resistant to tearing and the straps have no elasticity so will not deform. Breathable and lightweight give the dog a more comfortable experience. Reflective Material: The collar is equipped with 2 reflective stitching , which enhance visibility during low-light conditions. This increases the chances of your dog being seen by others, such as drivers or pedestrians, and improves safety during walks or outdoor activities. Size Guide:Available Size for Different Breed Dogs - [XS - Strap width 3/4", chest girth 10.5"-14"], [S - Strap width 3/4", chest girth 14"-20"], [M - Strap width 1", chest girth 20"-26"], [L - Strap width 1", chest girth 23"-33"]. The wider straps are adjustable to provide maximum comfort and reliable fit. It is recommended that you adjust the suitable size before putting it on your dog, which will save more time for wearing.