Just because it's winter and cold enough for a warm cap doesn't mean that it's not sunny enough for a cap with a bill. Though it is not impossible to double up on caps -- wear a summer cap under your winter beanie -- who wants to do that and bulk-up under your helmet. With the Giordana Thermosquare Winter Cap you get the best of both worlds; it's warm, super comfortable, and keeps the sun out of your eyes. Giordana uses their ThermoSquare material, which is a high performance microfiber. It has a brushed inner surface that feels luxurious against the skin, but most importantly allows for the necessary warmth and moisture management. The ThermoSquare fabric keeps you warm by wicking perspiration away from the head to the outer surface of the fabric. That way the moisture can escape without cooling you off along the way. The hat comes with protective ear flaps that can be worn down to protect your ears from a howling North wind, but when you get a touch too warm they can be turned back up easily. The ear flaps are also made from the ThermoSquare fabric. Since the cap is more wind-resistant than wind-proof, your head will be able to breathe and let off the extra steam that will prevent you from over-heating half way through your ride. The Giordana Thermosquare Winter Cap comes in one size that fits most. It is Black with a handsomely embroidered Giordana logo at the forehead.