X-Bionic Soma Cap Light has patented 3D-BionicSphere System is more than just an accessory as it cools when you sweat and warms when you are cold. Not olnly that but like all X-Bionic running clothes they feel so comfortable and a part of you that you forget you're wearing it. Additionally another great feature is that the EarComp Zone really works. They don't seem to impair your hearing whilst running which is great for the winter training especially id you have to run on the roads mixing with traffic.
A great beanie for all your adventures!