Solarflex Hoody Kathy Tue Jan 26 2016 I wore the solarflex while paddling in Baja Mexico. I was concerned it would be too warm, but it was perfect. The temps were in the mid-70's. I layered with a paddle jacket when the winds kicked up. The fabric seemed to breath a little which was appreciated later in the day. It has a longer hem and sleeves so I wasn't overexposed to sun.