Castelli Aria Shell 2 – Wind protection without compromising on lightness

109 grams of technology. Effective wind protection. A jacket that disappears in your pocket.

Discover the Castelli Aria Shell 2 Jacket, the new generation of ultralight wind jacket designed for cyclists who want effective protection without sacrificing breathability, comfort or aerodynamics.

Thanks to its windproof woven microfiber, its stretch mesh inserts and its Tailored fit, this jacket naturally follows the cyclist's movements while reducing fabric flapping at high speeds.

At just 109 g according to Castelli, it folds into its integrated pouch and easily fits into a jersey pocket.

Ideal for early morning starts, descents, and rides in variable temperatures, the Aria Shell 2 is an essential layer for extending the pleasure of riding.

Key features of the Castelli Aria Shell 2

• Only 109 g: an ultralight jacket that is forgotten during exercise.

• Windproof microfiber: protection on the front and back of the torso.

• Stretch mesh inserts: breathability and freedom of movement.

• Tailored fit: close-fitting cut to reduce fabric flapping.

• Integrated storage pouch: jacket easily compactable in a jersey pocket.

• YKK Vislon two-way zip: can be opened from the top or bottom.

• Reflective Castelli logos: improved visibility in low light.

• Recommended temperatures of 10 to 18 °C: perfect for cool to mild conditions.

• New generation Aria Shell 2: optimized ergonomics and updated finishes.

Ultralight windproof microfiber

The Castelli Aria Shell 2 uses particularly lightweight woven microfiber on the front and back of the torso.

This material helps reduce the cooling effect of the wind, especially during fast descents or early morning rides.

Unlike a thick winter jacket, the Aria Shell 2 focuses on targeted protection with minimal bulk.

It is ideal for wearing over a cycling jersey when temperatures are cool or the wind picks up.

Stretch inserts: breathability and freedom of movement

To prevent the stuffy feeling that some wind jackets can cause, Castelli has incorporated stretch mesh panels on the sides and back of the sleeves.

These areas help better release heat and naturally follow the body's movements.

Their stretch also helps keep the jacket close to the body, even as speed increases.

The result: wind protection that maintains a feeling of lightness and freedom.

A fitted cut designed for performance

The Castelli Aria Shell 2 features a Tailored fit, specifically developed for the cycling position.

The improved stretch panels reduce creases and unwanted fabric movement.

This construction provides a more fitted silhouette than a traditional wind jacket while retaining enough flexibility to ride comfortably.

A real advantage on sport rides and fast training sessions.

A jacket that fits in a jersey pocket

One of the Aria Shell 2's great strengths is its compactness.

Thanks to its ultralight construction, it folds into its integrated storage pouch.

Once compact, it can be carried in a jersey back pocket or a small bike bag.

This means you can always take it with you, even when the weather seems favorable at the start.

YKK Vislon two-way zip

The jacket features a bidirectional YKK Vislon zipper, which can be opened from the top or bottom.

This feature makes it easier to adjust ventilation during exercise.

It also allows you to slightly open the bottom of the jacket to more easily access the pockets of the jersey worn underneath.

A practical detail that is particularly appreciated on long rides.

Reflective details for better visibility

Castelli has incorporated reflective logos on this new generation.

They help improve the cyclist's visibility when light levels decrease.

An additional asset for early morning rides, late afternoon returns or changing weather conditions.

However, these elements are not a substitute for appropriate bike lighting.

An ideal jacket between 10 and 18 °C

Castelli recommends the Aria Shell 2 for use between 10 and 18 °C.

It is particularly suited to the following situations:

• Early morning starts in cool weather.

• Descent of mountain passes and mountain routes.

• Spring and autumn rides.

• Cycling training in windy weather.

• Long rides with temperature variations.

• Cycling camps and bike trips.

• Triathlete cycling training.

Its lightness makes it easy to remove when the temperature rises.

A wind jacket, not a rain jacket

The Aria Shell 2 was designed primarily to protect against the wind while promoting breathability.

It does not have the waterproof construction of a technical rain jacket.

It may be suitable for slightly damp conditions, but it is not intended to keep you dry in prolonged rain.

For regular riding in the rain, a specific waterproof jacket will be more appropriate.

Aria Shell 2: the evolution of an essential model

With this second generation, Castelli has improved several elements that made the Aria Shell a success:

• Refined ergonomics for a more precise fit.

• Redesigned stretch inserts on the sides and sleeves.

• Improved fabric stability as speed increases.

• New reflective details.

• The same philosophy of lightness and compactness.

The goal remains unchanged: to offer a high-performance wind jacket that can be taken on all your rides.

Why choose the Castelli Aria Shell 2 at Triathlon Store?

At Triathlon Store, we select technical equipment that meets the needs of demanding cyclists and triathletes.

The Castelli Aria Shell 2 is an essential piece for those who want wind protection without carrying around a heavy jacket.

Its fitted cut, excellent compactness and breathable panels make it a particularly versatile piece of equipment for training and long rides.

Castelli Aria Shell 2: the protection you need, only when you need it.