Castelli’s Pro Thermal Neck Warmer is a versatile cold-weather essential that delivers warmth and comfort both on and off the bike. Made with soft, stretchy Thermoflex fabric, it provides insulation without bulk and can be worn as a neck warmer, bandana, or cap. Flat-lock stitching and a raw-cut edge ensure a smooth fit that layers easily under jerseys and jackets.

• Thermal cycling neck warmer
• Thermoflex fabric: warm, soft, and stretchy
• Flat-lock stitching for next-to-skin comfort
• Raw-cut edge reduces bulk under layers
• Can be worn multiple ways: neck warmer, bandana, or cap
• Lightweight and breathable design
• Weight: 68 g