4520502-656 | FIERY RED

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Based on 10 reviews

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Fantastic winter jacket

I love this jacket. I’ve ridden outside for two winters in the Northeastern US where winters are tough. Down to 25F I wear this jacket (women’s version) and a merino wool base-layer. When the real feel drops below 25F, I add a second merino wool layer underneath. I’ve been happy and comfortable even on brutally cold days (down into the teens in Farenheit). It’s surprisingly warm. It’s a great looking jacket too. Submitted on  23 February 2021  by  Nathalie


I own a lot of different sportswear. But the Alpha Ros 2 jacket is by far the best garment I've ever had. Yesterday I rode my road bike for about two hours at -4°C with just a merino wool baselayer underneath. It was also windy, but I didn't freeze. Simply fantastic! Submitted on  15 February 2021  by  Stefan

Great Jacket - Impressive Really

I have worn this jacket a lot this winter as I prefer the outdoors to a trainer any day. Rode 277 total miles in January for rides into the low 20's and I stay warm in this jacket. I am actually amazed at how well this jacket blocks the wind and the cold air. I typically layer with a merino wool against the skin then a good wicking polyester mid layer and my core is warm even at 21 degrees. This was an expensive jacket but well worth the money if you plan to ride in the winter. Been caught in some light rain showers too and it did a great job keeping me dry. Love this coat and have no regrets purchasing it. I am 5'8" 162 lbs and ordered the XL and it fits great. Submitted on  02 February 2021  by  Todd Morgan

Problem Solved!

Riding in the winter I've always struggled to find the right cold weather jacket combo that doesn't trap all of my sweat and make me have to stop mid-ride to peel away and store my wind stopping layer. With this jacket I no longer have that issue. I've been on 3 rides so far with temps ranging 20 to 35 degrees fahrenheit and in all conditions I've returned moisture-free on the inside of the jacket. One nice feature is the double collar that helps eliminate gaps and down draft around the back of the neck-line. Another unique feature that I've only seen on this jacket is the internal integrated vest that allows you to open the main zipper on the jacket for ventilation while the vest keeps the jacket in place. This is great to help regulate your climate control. Slim fit in the chest keeps you toasty when you need the heat and arms are plenty long to ensure no exposed wrists. Overall I'm super happy with how this jacket has solved my winter riding dilemma! Highly recommend this jacket! Height: 6'2", Weight 160 lbs, Size Large, MTB, Fatbike, Cyclocross Submitted on  29 January 2021  by  Roger


Riding in NE Ohio through winter. Typical 0 to -10c damp and windy. This jacket is a superb piece of kit, warm but not too warm, the wind does not cut through it, and the fit is spot on. Very well done. Submitted on  25 January 2021  by  Brad Rossetto

Formidable veste

Excellente veste, utilisée maintes fois par des températures négative on ne ressent pas de froid au haut de corps même en descente de col en hiver. La double ouverture est très appréciable lors de la monté. Submitted on  08 January 2021  by  Adrien

I absolutely love this jacket

This is, hands down the best winter jacket I have ever owned, and I’ve ridden for 30 years, love the fact that it’s windproof and almost waterproof so I don’t have to worry if it starts sprinkling, the temp rating Castelli gives is a little off, I’ve had this thing in the high 20’s with absolutely no problem, of course with a good base layer and a jersey. The high neck is great, nice deep pockets on the back, and let’s not forget the inner layer you can keep zipped up while you open the front up to cool off on climbs, very neat feature and it works great, jacket is t too heavy either, feels well made and should last a while, I know it seems pricey, but well worth the price in the end. Submitted on  27 December 2020  by  Robby


I am not a professional cyclist but I had a real problem finding a comfortable jacket to cycle in. After my little test cycle, I can confirm that it is simply the best! The UK weather is unpredictable and can quickly change from very cold to warm in a day. Great work team Castelli! Submitted on  14 December 2020  by  Ben Banks

No bad weather, no excuses with this jacket

It's perfect. I had high expectations but this product could surpass those. It's much easier to go out in the cold and dark if you have this jacket. Around 0 degrees, combined with the core seamless base layer gives me super comfort. After going up a mountain at high intensity, you won't be dry, however during -1 celsius downhill, youu just close the front zipper and it will keep you warm. Now i'm excited to experience sub zero rides (down to -5) with this jacket, I'm sure it will handle the situation with the flanders warm base layers. Highly recommended, worth the price. Submitted on  17 November 2020  by  Zoltan Petes

No such thing as off seasons!!!

Don’t have excuse now to say “ the weather is to bad to ride” rain or shine, 25 degrees Fahrenheit, I’ve used this jacket with only a fleece long sleeve underneath in 25 degree weather and it was amazing.. kept me warm while the water droplets froze on my beard if that helps any ahah, I purchased a medium and I’m 5’8 145lbs with a 37 inch chest or just about and this jacket fits perfect. Love how it has a lip to cover gloves where wind and heat would normally escape not with this jacket. Hope this helps to anyone else. Submitted on  10 November 2020  by  Charles B. Hernandez


Important Notice

Following the new measures issued by the Italian Government to prevent
the spread of the COVID-19, we need to inform you that our company
will be closed from March 23 to April 3 (inclusive).
All orders placed during this period will be dispatched from April 6.
Due the evolving situation, we invite you to visit the website for further updates.

We thank you for your comprehension during this difficult time and
we would like to take this opportunity to wish you and your loved ones all the best.
Product features
  • Rain or Shine engineering makes this our best jacket ever for dry conditions while also providing significant rain protection
  • GORE-TEX INFINIUM™ WINDSTOPPER® 150 fabric for wind protection with high breathability and effective rain protection
  • Reduced seaming with seam sealing on shoulders reduces chances for water to enter through stitching
  • Double-layer Alpha construction separates insulating layer from wind/water barrier to let you better regulate ventilation
  • Water-resistant YKK® Vislon® zipper slides easily for better regulation of airflow
  • Raw-edge waist with silicone gripper lies flat and seals out wind
  • Double-layer cuff integrates with glove to prevent cold wind or water from entering at wrist
  • Stretch fabrics with advanced patterning make for excellent close-to-body fit that still accommodates a wide range of body types
  • Back ventilation
  • 3 rear pockets with reflective laser-cut drain holes
  • Zippered secure side pocket for valuables
  • -5°-10 °C / 23°-50°F
  • Weight:525 g
Banner 4519535 W20

Complete the look


    0°-12°C / 32°-54°F



    3°-12°C / 37°-54°F



    0°-14°C / 32°-57°F



    -8°-6°C / 18°-43°F