Recyclable polypropylene fiber gives Giordana's Thermal Skull Cap a sustainability angle without compromising thermal performance. The material choice matters here — polypropylene naturally wicks moisture away from the skin while retaining warmth, and it dries quickly if you work up a sweat on a climb before descending into colder air. The fabric also resists odor buildup over multiple wears between washes.

Seamless construction across the top panel eliminates pressure points under your helmet. If you've worn skull caps with seams running over the crown, you know how those ridges can create hot spots during longer rides. The Thermal Skull Cap sits flat against your head, adding insulation without adding bulk or interfering with helmet fit.

The forehead panel uses a dedicated thermal fabric that blocks wind where you need it most. Cold air hitting your forehead triggers that brain-freeze sensation that makes early morning starts miserable, so the extra protection across the front makes a noticeable difference on exposed descents or headwind sections.... Read More