Jerry, email Michelle, Mutt Muffs is her company. She has flown serveral rescue flights for Pilots-N-Paws and she in the photo I sent, she is the gal on the left....this flight were all pups from a puppymill in Ohio and every one of them pups had Mutt Muffs on :-) Here is her email address:
shelly@safeandsoundpets.com
I am sure she would be happy to advise you. It likely has to do with tightening one strap more then the other...just guessing though!
Debi