Castelli Pro Thermal 3 Headband

Castelli Pro Thermal 3 Headband – Thermal Cycling Headband for Cool Conditions

The Castelli Pro Thermal 3 Headband is a lightweight thermal cycling headband designed to protect your forehead and ears during cool-weather rides. Made from soft and stretchy Thermoflex fabric, it provides comfortable warmth, manages moisture and fits neatly underneath a cycling helmet.

It is an ideal choice for autumn and spring rides, cold mornings and higher-intensity winter training when you need more protection than a summer headband but less insulation than a full winter cycling cap. The open-top design allows excess heat to escape while keeping the ears covered.

Warm and Breathable Thermoflex Fabric

The Thermoflex fabric combines a soft feel with excellent stretch and effective moisture management. It follows the shape of the head, stays comfortably in place and creates minimal bulk underneath a helmet.

Comfort Without Irritation

Flatlock seams help reduce pressure points and skin irritation during longer rides. Reflective details on the back increase visibility in low-light conditions, making the headband particularly useful for early-morning and evening training.

Key Benefits

• Helps keep the forehead and ears warm in cool conditions.
• Soft, warm and stretchy Thermoflex fabric.
• Effective moisture management during active riding.
• Low-profile construction fits comfortably underneath a cycling helmet.
• Open-top design allows excess heat to escape.
• Flatlock seams help reduce rubbing and irritation.
• Reflective rear details improve low-light visibility.
• Unisex design suitable for women and men.

Who Is It For?

The Castelli Pro Thermal 3 Headband is designed for cyclists looking for a lighter alternative to a full winter cycling cap. It is suitable for road cycling, gravel riding, commuting and training in cool transitional weather. Its compact size also makes it easy to carry in a jersey or jacket pocket.

Technical Features

• Product type: thermal cycling headband.
• Fabric: Thermoflex.
• Fabric properties: warm, soft, stretchy and breathable.
• Seams: flatlock construction for improved comfort.
• Visibility: reflective details on the back.
• Helmet compatibility: designed to fit underneath a cycling helmet.
• Fit: regular.
• Gender: unisex.
• Size: one size.
• Weight: approximately 28 g.

When a summer headband is no longer warm enough but a full winter cap feels excessive, the Castelli Pro Thermal 3 Headband offers an excellent balance of warmth, breathability and under-helmet comfort.