Designed For Small and Medium Dogs：Common dog harness is too heavy for small and medium dogs.this harness is lightweight design(S size is only 3.7 ounces weight). Easy On And Off：only two steps can wear it on your dog, firstly put the collar around dog’s neck, secondly lock the chest buckle, that is done. It is very convenient for everyday use. Durable And Comfortable :outer Nylon cloth is glossy and durable，with 2 reflective lines makes it visible in dark condition. inner Neoprene material is soft and elastic，can absorb the strength when crashing to protect the dog’s neck. Better Fit：3 sizes are available for choosing, two adjustable belts with double-protection buckles (the buckle has a slip lock)make the harness fit your dog perfectly. Pls do read our size chart and measure your dogs carefully. WarmTips ： The size of iChoue Apparel & Accessories are recommended individually according to different styles and materials.Please refer to the size chart on the detail page of this product.Any questions,please feel free to contact us,We’ll reply within 24 hours. To learn more about iChoue products, such as beautiful clothes and pet supplies, go to iChoue store and pick your favourite.