Castelli's Pro Thermal Headband is made to fit easily under your helmet while keeping your ears and forehead warm. The raw-cut edges mean you don't even feel it, while the Thermoflex fabric insulates while keeping you dry.

• Thermoflex is warm, soft and stretchy
• Flat-lock stitching
• Contoured to cover ears
• Raw-cut edge lies flat and doesn't bunch under helmet
• Reflective detailing on back
• Weight: .92 oz / 26 g
• Fit: Comfortable