The halter bridle is designed so the you can TIE the horse on the trail, and not have to tie with the bridle. In endurance, we rode the first loop or so with a crazy animal who needed a bit, then the last loop or so on a tired animal that needed to grab grass wherever it could, no bit needed anymore.
I have never seen a trail bridle styled like that. Pretty neat. Pretty color!!
That said, if you are not going to ever use a bit.....you could just make a paracord browband for your halter...it may not be that pretty color, though!