Castelli Pro Thermal Head Thingy

Castelli Pro Thermal Head Thingy The Castelli Pro Thermal Head Thingy is a versatile accessory that can be worn around the neck; as a bandana or as a hat. The Thermoflex fabric is warm and soft with plenty of stretch; making it ideal for the majority of riders. If the mercury starts to rise; the Head Thingy can easily be folded and stored in a jersey pocket.