Ensure a harness fits

Sure, a harness can make it easier to keep your pet from tugging on the leash. And to get the perfect fit, use the “two-finger” rule many dog trainers swear by: Just fasten the harness onto your pup and check that you can easily slip two fingers between it and his neck. This ensures the harness isn’t too tight but still snug enough so it won’t slip off. If your fingers don’t fit, adjust the size or buy the next size up.