Castelli Alpha RoS Jacket – Women’s

We’ve read the reviews across the web for the Castelli Alpha RoS Jacket – Women’s and summarize the results below:

Universal Ranking

PeakScore: 93 (out of 100)
User Rating: 4.7 stars 
Expert Rating: 4.7 stars

Number of Ratings Reviewed: 16

Pros & Cons

Reasons to buy:

User Reviews

  • The bright color is great for style and visibility while on the road.
  • Works well for layering during very cold days or wearing as a stand-alone layer during warmer days on the bike.
  • The rear pockets are spacious to hold small gear items during the ride for added user-friendliness.
  • Features back ventilation for added temperature regulation during warm days.
  • The vest construction is smart for those who get hotter during a long-distance ride.

Expert Reviews

  • Offers complete wind and rain protection to keep you dry during inclement weather.
  • Works well for layering during very cold temperatures for added versatility.
  • Contains ample pockets for storage of small gear items while on-the-go.
  • The construction uses reduced seaming for added weather protection.
  • The cuffs are flat and keep the wind out to prevent drafts from getting in during your ride.
  • The inner material is soft and comfortable against your skin for long-distance rides.
  • Features two-layer construction for added warmth and breathability.

Reasons NOT to buy:

User Reviews

  • Might need to try-on before purchasing to ensure you purchase the correct size.

Expert Reviews

  • Very expensive when compared to other similar cycling layers.
  • The sleeves are baggy, which reduces the aerodynamic qualities of the jacket.


The Castelli Alpha RoS Jacket for women is a breathable, warm, and high-quality layering option that can work well as a stand-alone jacket or outer layer during very cold temperatures. Featuring storage pockets, comfortable material, and wicking properties, this jacket is a suitable option for all seasons.

More Details:

The Castelli Alpha RoS Jacket for women stands out as a versatile and protective layer for cycling enthusiasts, praised for its functionality and style. Users appreciate the bright color not only for its stylish appeal but also for increased visibility on the road, enhancing safety. This jacket’s adaptability for layering in various weather conditions—be it very cold days or warmer rides—is commendable, offering flexibility for diverse cycling environments. The spacious rear pockets add convenience for carrying small gear items during rides, while the back ventilation enhances temperature regulation, ensuring comfort during warm days. Its vest construction caters to those prone to overheating during long-distance rides, optimizing airflow for comfort.

Expert reviews reinforce the jacket’s protective capabilities, emphasizing its complete wind and rain protection, a crucial feature during inclement weather. The reduced seaming contributes to enhanced weather resistance while ample pockets cater to storage needs during active rides. The cuffs’ design effectively keeps wind out, preventing drafts and ensuring comfort during cycling sessions. The inner material’s softness enhances comfort, ideal for long-distance rides, while the two-layer construction balances warmth and breathability.

However, concerns surface in both user and expert reviews. Users suggest trying on the jacket before purchase due to potential sizing discrepancies. Expert reviews note the higher price tag compared to similar cycling layers, which might deter budget-conscious buyers. Additionally, some mention the sleeves’ bagginess potentially impacting the jacket’s aerodynamic qualities, although this might vary in significance depending on individual preferences and performance requirements.

In summary, the Castelli Alpha RoS Jacket impresses with its protective features, adaptability for diverse weather conditions, and thoughtful design elements for cyclists. Its visibility, layering versatility, and ample storage options cater to the needs of active riders. Yet, potential buyers should consider the need for a proper fit, the higher price point, and the potential impact of the baggy sleeves on aerodynamics when evaluating this jacket for their cycling pursuits.


Note: User and expert rankings were reviewed across the web. Some expert reviews include these: 1, 2, 3.