Sometimes just a little something under the helmet can make all the difference in cycling comfort. Case in point the Arrivo 3 Thermo Skully Cap from Castelli. Using a Thermoflex material, this skull cap insulates well, is soft, and it's stretchy to maintain fit. Flatlock stitching is used to reduce bulk under the helmet and its raw-cut finish lies flat for a comfortable fit. Ideal for those early and late season rides when you want to keep the chill out.
One size fits most and the Arrivo 3 Thermo Skully Cap comes in the colors Yellow Fluo, Red, and Light Black.
A cool-weather skullcap for chilly, windy days
Protects against wind chill and insulates
Flatlock stitching reduces irritation and friction
Raw-cut edge lies flat reducing bulk under a helmet