I think they are sealed very well. I am not saying there are no air gaps, because there is always a fee small places but by no means anything significant. We purposely do not try to make it airtight for ventilation purposes. I was out plowing in minus 45 windchill with no hat or gloves and a thin jacket and was very comfortable with no fogging issues.how well are they sealed? I know with alot of soft and hard enclosures there are still significant air gaps...
whats the best way for sealing these up?