My older boston terrier/boxer mix has an awful time with collars. He's a "runner off-er", and if I'm not out with him supervising him 100% of the time, he likes to go off on "adventures" He's microchipped, but I would feel MUCH better if he was also wearing his ID tags. Does anyone know of a non-irritating dog collar? I've tried nylon, leather, and cotton and they all rub him under his neck/chest to the point that he bleeds. Even if someone knows how to make one? Is there a harness for a 40lb dog?