Castelli Flight Jacket Air

Our lightest, fastest, and most breathable jacket is great for high-intensity riding or maintaining the right body temperature in cool conditions. It features no membrane but includes Polartec® Alpha® insulation.

Technical Specs:

• Nano Flex Light fabric keeps out most riding wind while ensuring maximum breathability due to the lack of a membrane.
• Polartec® Alpha® active insulation on the chest, sleeves, and upper back provides extra warmth.
• Concealed YKK® Vislon® zipper prevents wind from entering.
• Stretch cuffs easily tuck into gloves or cover glove cuffs to keep the cold out.
• Body-hugging fit.
• Three back pockets.
• Water-repellent finish.
• Reflective details on the back.

This jacket is ideal for fast rides on days when it's too warm for a jacket and too cold for a jersey. Traditionally, you might have used a vest and arm warmers, but this jacket does it better.

Instead of completely blocking the wind from your torso, the stretch fabric is minimally permeable. It keeps enough air out to prevent freezing while allowing enough through to keep you drier. Along with the shell, the featherweight Polartec® Alpha® insulation provides essential warmth in key areas without sacrificing breathability.

The cut is close to the body, making it our most aerodynamic jacket. While aerodynamics may not be a priority in winter, we believe in the "Fast is Fun" principle. The close fit also makes the jacket warmer than minimalist materials typically allow.

Additional features are strictly rider-oriented: the smooth-running YKK® Vislon® zipper allows for easy one-handed ventilation, and three back pockets offer ample storage for long rides. The jacket is cut short, ensuring it is not bulky in the front or back. Reflective details enhance visibility, and the outer material is water-repellent to keep out splashes and light showers.