[HARNESS IS ESSENTIAL!] Research shows that regular exercise, outdoor play are good way to keep your dog active, satisfied and well behaved. Then a suitable harness is essential ! [MOST IMPORTANT FEATURES] 1. 2 Leash Attachment hooks Our these two hooks are available for almost all leash hooks. They are big enough. If you use the front hook on the chest, it will reduce the pulling a lot and make going for a walk more enjoyable. As usual, most people like to use the back hook. 2. 1 Soft Training Handle You will like this handle on the back,it is helpful in controlling dogs a bit closer to you when they are trying to lunge at something. Also, it is convenient to assist dogs into the car. 3. Reflective The reflective material will be really nice when it gets dark. Also, your dog will be saw easily. This reflective material can make drivers have long time to react, which ensure your dog’s safety! 4. 4 Adjustable Clips These four black clips are adjustable, two are on the neck and other two are on the chest. You can adjust it to the best size. [HOW TO CHOOSE THE CORRECT SIZE? ] Step 1. Measure dog’s Neck Girth ; Step 2. Measure dog’s Chest Girth ; Step 3. You should be able to fit two fingers under the straps. If between sizes, please choose the larger size. XS -- Neck : 10-12" ; Chest : 11-20"; S -- Neck: 12-18” ; Chest: 14-24”; M -- Neck: 14-20” ; Chest: 16-28”; L -- Neck: 16-24”; Chest: 22-33”; XL -- Neck: 22-33”; Chest: 28-39”; THE BACK LENGTH (THE TOP STRAP THAT CONTACTS THE NECK TO THE CHEST STRAP) : XS : 4.13 inch S : 4.33 inch M: 5.51 inch L : 5.90 inch XL: 6.89 inch Click the Add to Cart Button Now!