A comfortable, streamlined beanie from Pearl Izumi with a windproof front panel to keep you warm in the depths of winter. Precisely designed to fit under a helmet, the Barrier Skull Cap's gently scalloped back prevents the fabric from bunching up in the cycling position. PRO: Thermal Dry fabric provides quick-drying warmth, reflective elements enhance safety, and a rear port that's otherwise hidden opens when needed to accommodate a ponytail.