I actually can give you some feedback on the shirt mic, on Amazon I bought 3 for roughly about $7 USD. While the clip is a bit flimsy and two have broken off the third one I still use. They work very well for their worth and size. The only real complaint is the audio volume has to be tinkered with. I recommend them. I can not post a link here as I have not met the minimum post requirements but they are easy to find under a search for "Collar Mic" they are called something else but they usually pop up for me. I recommended them and if your a heavy breather I think this will help a great deal. You could also get any that are roughly $80 or so I think Tonor is the brand and turn your sensitivity up on your mic. So as it stays put you can still be heard from farther away and depending how your editing (if you are) you can amplify the audio or (if you aren't) possibly turn up your output.
