Warmer than expected, not too bad.
Verified Buyer Reviewed by SlowRunnah42 from NY on Sunday, September 11, 2016
Because it's wool, it it a not warmer than a regular bra, but wore it for a run on 85 degree, humid day and it wasn't too bad. I am between sizes, so I ordered the medium, was a little too big, but again, not too bad. Wish they had other colors, would definitely order them.