actually pretty good. used it on a cold ride Saturday, which surprised me. started the ride with a thin knit hat but at the halfway point took it off cuz it was soaked. wringed it out and hung it on my rack trunk to dry in the sun. I brought a balaclava with me but decided to try the thin smartwool beanie instead. I knew the ride back had some climbing so thought I would be hotter. turned out being the right choice! highly recommended it!