Castelli Do.Di.Ci. Jacket in the BIKE test: Excellent weather protection for ambitious mountain bikers

​Designed for sporting activities during the change of seasons

With the Do.Di.Ci. Jacket Castelli positions its weather jersey as a cross between a classic long-sleeved jersey and a lightweight weather-proof jacket. The focus is clearly on high-intensity rides where wind protection and breathability are equally important.

The jacket is available in sizes XS to 3XL and has a regular fit. The close-fitting cut enhances the fabric’s performance and prevents annoying flapping when cycling at higher speeds.

Top-class weather protection

The Do.Di.Ci. Jacket’s greatest strength is its weather protection. With a top score of 1.0, it ranks amongst the best-performing models in the entire comparison.

The front zip effectively reduces the ingress of cold air and provides noticeably greater comfort, particularly on fast descents. At the same time, the jacket remains breathable enough for strenuous climbs and intense trail rides.

However, it is not designed for prolonged rain. Anyone who regularly goes out in the rain should still opt for a waterproof rain jacket.

A sporty fit with a high level of comfort

In terms of fit and comfort, the Castelli scores an impressive 1.4. The jacket has a close-fitting cut without restricting freedom of movement on a mountain bike.

The silicone waistband keeps the hem securely in place even on rough trails and prevents it from riding up at the back. At the same time, there is plenty of room for functional underwear or a lightweight base layer.

This makes the Do.Di.Ci. Jacket particularly appealing to sporty riders who are looking for a close-fitting, yet not extremely tight, option.

Pleasantly light for long rides

Weighing 240 grams in size L, the Castelli is one of the lighter models in the test. The score of 1.5 for weight and pack size highlights the successful balance between weather protection and everyday practicality.

For long rides and changeable conditions, the jacket offers ample protection against the elements without adding unnecessary bulk. At the same time, it remains significantly lighter than many traditional winter jackets.

Functional features with a few minor flaws

The jacket scored 2.0 in the test. It comes complete with a silicone waistband, a reinforced zip and numerous reflective trims.

The jacket focuses on the essential features and does away with superfluous details. However, for the asking price, its visibility in low-light conditions could have been a little better.

On the other hand, the wide range of colours is a definite plus. As well as classic shades, there are also more eye-catching colours available, which make for a more striking appearance on trails and roads.

Position in the test field

With an overall score of 1.4, the Castelli Do.Di.Ci. Jacket ranks amongst the top performers in the test. It combines excellent weather protection with a sporty fit and low weight.

It is therefore aimed particularly at mountain bikers who ride intensively in autumn, spring and on mild winter days, and who are looking for a performance-oriented solution.

Castelli Do.Di.Ci. Jacket: Product information and BIKE review

The editorial team’s conclusion

The Castelli Do.Di.Ci. Jacket ranks amongst the best weather jerseys in the entire test line-up. It impresses with excellent wind protection, a sporty fit and a weight that is pleasingly low for this performance class. The only drawback is the reflective details, which could be a little more prominent. Anyone looking for a performance-oriented weather jersey for cool temperatures, wind and changeable trail conditions will find this to be one of the strongest options in the test.