A great jacket for when it's chilly but not bitter, close fit and ideal, 2 great features are the zipped valuables pocket and the zipped inner liner.
Product Details
Alpha Flight Ros Jacket
Castelli's ultimate jacket for mild conditions – a lightweight, breathable, and fast option perfect for high-intensity rides or maintaining the ideal temperature in cooler weather. The Nano Flex Light woven fabric strategically placed on the chest, sleeves, and upper back provides partial wind resistance, prioritising breathability.
Castelli Alpha Flight Jacket Highlights
The innovative Alpha double-layer construction effectively manages ventilation and temperature by separating the wind-blocking layer from the insulation layer. Topped with a water-repellent finish and featuring Polartec® Alpha active insulation, this jacket keeps you warm where it counts. The addition of Nano Flex Extra Dry on the back offers enhanced ventilation, allowing heat and sweat to escape while fending off rain with its nanotechnology water-repellent finish.
Features
- Nano Flex Light woven fabric
- Alpha double-layer construction
- Water-repellent finish
- Polartec® Alpha active insulation
- Nano Flex Extra Dry on back for more ventilation
- Off-set Double YKK® Vislon® front zippers
- Zipper pocket on side to secure valuables
- 3 rear pockets with laser-cut drain holes
- Raw-edge waist lies flat and moves with you
Specifications
- Composition
- OUTER MAIN FABRIC - 100%POLYESTER
- Cycling Discipline
- Road
- Gender
- Men's
- Material / Main Fabric
- Polyester
- Primary Activity
- Cycling
- Weather Protection Level
- Wind Resistant, Water Resistant
- Product code
- 1938768 / 54294811869530
Size Guide
| Suggested Warmer Size | S (Female) | S (Male) | M | L | XL |
|---|---|---|---|---|---|
| Your Weight (Kg) | 45 - 60 | 45 - 60 | 60 - 70 | 70 - 80 | > 80 |
| Jersey / Short Size | XS - S | S - M | S - M | L - XL | 2XL - 3XL |
Castelli warmer sizing relates to your jersey/short size and your body weight. Please note there is some crossover.
If you require any advice on Castelli sizing, please do not hesitate to contact us.
Reviews
Well made lightweight stretchy jacket, I'm 42 inch chest and 36 inch waist and the size xxl is a good close fit, worn in 2 degrees c with a long sleeve base layer and I was comfortable, jacket breathes very well didn't get sweaty at all, sleeves are a bit too long but apart from that perfect.
Care
Shipping & Returns
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
Q & A
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About Castelli
At the front since 1876.
Castelli has been at the front of cycling apparel since 1876, founded in Milan as the original maker of pro race kit. From the first cycling jerseys to today's WorldTour-proven aero garments, the brand has spent nearly 150 years putting innovation onto the backs of the fastest riders in the world.
Castelli outfitted the first organised cycling teams in Italy and has been a constant presence in the pro peloton ever since. The Scorpion logo appears on more WorldTour podiums than almost any other apparel mark.





