The other day I was out running, 0 degrees F. Nike Dri-fit, next to my
skin, then a cotton mock turtle neck. On top of that I had a medium weight
Lands End fleece jacket on. I was plenty warm. I was out about an hour.
When I finished up, I noticed that my arms, shoulders, and back were caked
in ice crystals or frost. OK, not a big deal, my sweat must have "breathed
through" my fleece, collected on the outside, and froze.
So I changed shirts since they were sweaty and jacket since it was now wet
and went out for another run. This time in a cheapo (but breathable,
supposedly, with a back vent) shell that I bought at a well known national
chain of sporting goods. At this time it was about 3F.
Once again, out for an hour. This time, though, no ice crystals.
Why the difference? Which jacket is better?
Any thoughts?
Thanks,
Jeff.