Castelli Sinergia 3 FZ Jersey

The Castelli Sinergia 3 FZ Jersey is the ideal thermal jersey for road cycling during the shoulder seasons. Designed to handle the cooler temperatures of autumn and spring, it offers the right balance of warmth, comfort, and practicality.

The warm fabric ensures reliable performance on cooler days, while the streamlined construction avoids unnecessary bulk. It is a jersey designed to be worn on its own on mild days, paired with a gilet when the temperature drops, or as an insulating layer under a jacket in colder conditions.

Recommended temperature

From 12°C to 18°C (53°F - 64°F)

The ideal thermal jersey for the shoulder seasons

Most cyclists use a long-sleeved jersey during parts of autumn and spring, then extend its versatility with a gilet when temperatures drop.

The Sinergia 3 FZ was designed precisely for this type of use: a thermal jersey that provides the necessary warmth without being overly bulky or complicated.

It can be worn directly against the skin on cool days, used under a gilet for greater protection, or as an insulating layer under a jacket when conditions become harsher.

Warm fabric and comfort

The warmer fabric provides a good level of thermal insulation while maintaining the necessary comfort during the ride.

The fit and construction are designed to provide a pleasant feel during activity without adding excessive volume, making the Sinergia 3 FZ an extremely versatile piece in the cyclist's wardrobe.

YKK® Vislon® zipper

The jersey features a lightweight and smooth-running YKK® Vislon® zipper, allowing you to easily adjust the front opening and ventilation during the ride.

The zipper is designed to be simple and quick to use even while on the move.

Three rear pockets

The back features 3 rear pockets, ideal for carrying everything you need during your bike ride.

The lower part of the jersey features a waistband with grip, which helps keep the garment stable in the correct position during the ride, preventing it from riding up or shifting.

Main features

• Long-sleeved thermal jersey ideal for spring and autumn.

• Designed for road cycling.

• Warm fabric for handling cooler temperatures.

• Ideal for temperatures between 12°C and 18°C.

• Can be worn on its own, with a gilet, or under a jacket.

• Lightweight and smooth-running YKK® Vislon® zipper.

• 3 rear pockets.

• Waistband with grip to keep the jersey stable during the ride.

• Essential and versatile design, without excessive bulk.

Technical specifications

Castelli Sinergia 3 FZ Jersey: versatility for the shoulder seasons

The Castelli Sinergia 3 FZ is a thermal jersey designed to accompany the cyclist through the cool days of spring and autumn.

The warm fabric, YKK® Vislon® zipper, three rear pockets, and waistband with grip all offer the essential features for riding in comfort and practicality.

A versatile solution that can be worn on its own on milder days, paired with a gilet when the temperature drops, or as an insulating layer under a jacket in colder conditions.