
I bought these to work in sub-zero temperatures but wore them on a rainy day/evening when temperatures dropped to 40's. I don't have specific wind chill information but it was ideal for the conditions. I suspect that they would have been enough for a four-hour run without constant wind into the 20's, but I won't know for sure until the games in late December. The fit was very comfortable under the blue jeans and didn't bother me. security duties. Would definitely buy again.

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