I can't really help you with the naming bit... I'm terrible at it (Maybe Indy short for independence?). I suggest a buddy belt size 2...you could put it on the tightest setting for the puppy and as he/she grows loosen it and you shouldn't have to continuously buy a new harness
. I have one for my other dog and she loves it and will even sleep in it. By the way WELCOME TO YORKIETALK