Gearing up for cold-weather riding can be something of a chore, but we've found those quiet stretches of snowy road on a sunny November afternoon to be some of the most rewarding. While simple in stature, the Pearl Izumi Barrier Skull Cap is a crucial piece of gear that protects your exposed head from the chilly winds and light moisture you'll likely encounter while enjoying those peaceful winter vistas. The Barrier Skull Cap is like Pearl Izumi's Thermal Skull Cap in that its ergonomic fit layers comfortably under your helmet. It also shares the Thermal model's ability to wick away moisture and insulate your head. The difference lies in the front panel, where the Barrier Cap incorporates Pearl's Barrier shell to block the wind on your head's leading edge. The Barrier Skull Cap is finished with a ponytail port to accommodate a ponytail or the party end of a Karpets-esque mullet. The port routes long hair without interfering with helmet retention dials, so the cap's layer-friendly fit isn't compromised because of long hair. Reflective elements round the cap off for an added does of low-light visibility.