---
product_id: 638455602
title: "CASTELLI Men's Alpha Doppio RoS Jacket, Windproof, Water-Resistant Breathable Insulated Shell for Winter Biking, Race Cycling"
brand: "castelli"
price: "$855.81"
currency: USD
in_stock: true
reviews_count: 3
category: "Castelli"
url: https://www.desertcart.us/products/638455602-castelli-mens-alpha-doppio-ros-jacket-windproof-water-resistant-breathable
store_origin: US
region: United States of America
---

# Gore-Tex Infinium Windstopper 150 - ultimate windproof & waterproof High-stretch close-to-body fit - aerodynamic & comfortable Polartex Alpha Direct insulation - breathable warmth without bulk CASTELLI Men's Alpha Doppio RoS Jacket, Windproof, Water-Resistant Breathable Insulated Shell for Winter Biking, Race Cycling

**Brand:** castelli
**Price:** $855.81
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Gear up, stay warm, and own the cold—ride like the pros do!

## Quick Answers

- **What is this?** CASTELLI Men's Alpha Doppio RoS Jacket, Windproof, Water-Resistant Breathable Insulated Shell for Winter Biking, Race Cycling by castelli
- **How much does it cost?** $855.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/638455602-castelli-mens-alpha-doppio-ros-jacket-windproof-water-resistant-breathable)

## Best For

- castelli enthusiasts

## Why This Product

- Trusted castelli brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Weather Warrior:** Engineered to excel in rain, wind, and cold—your go-to jacket for winter rides and unpredictable weather.
- • **Race-Ready Aerodynamics:** Close-to-body stretch fit maximizes speed and performance without sacrificing comfort.
- • **Seamless Comfort Details:** Stretch waist with silicone grip and double-layer cuffs integrate perfectly with gloves for zero distractions.
- • **Smart Ventilation System:** Back vents and dual-layer design let moisture escape while locking in warmth, keeping you dry and fresh.
- • **Secure & Accessible Storage:** Three rear pockets with reflective drain holes plus a water-resistant front pocket for valuables on the move.

## Overview

The CASTELLI Men's Alpha Doppio RoS Jacket is a premium winter cycling shell combining Gore-Tex Infinium windproof and waterproof technology with Polartex Alpha Direct insulation. Designed for a close, aerodynamic fit with high-stretch fabrics, it offers superior breathability and moisture management through a dual-layer system and back ventilation. Featuring secure, reflective storage pockets and glove-friendly cuffs, this jacket is built for serious cyclists who demand versatile, all-weather performance and sleek comfort on every ride.

## Description

Buy CASTELLI Men's Alpha Doppio RoS Jacket, Windproof, Water-Resistant Breathable Insulated Shell for Winter Biking, Race Cycling - Light Black/Silver Reflex-Dark Gray - X-Large: Shop top fashion brands Jackets at desertcart.com ✓ FREE DELIVERY and Returns possible on eligible purchases

Review: Good fit - Good fit, great material used. Seems to be warm for cold days
Review: Excelente chamarra - Una chamarra perfecta para tiempos de fríos

## Features

- SIZING: Castelli products have a close-to-the-body fit to maximize aerodynamics and performance. For a less compressive feel, or if your measurements fall between sizes, we recommend that you size up.
- VERSATILE USE CASE: Ideal wear through rain or shine, our industry leading Alpha Doppio RoS Jacket performs well through dry conditions as well as providing significant rain and moisture protection, its our most versatile performance jacket for cold weather training we’ve ever created.
- MATERIAL CONSTRUCTION: Gore-Tex Infinium Windstopper 150 outer fabric construction is windproof and waterproof while remaining highly breathable. Double-layer Alpha with Polartex Alpha Direct insulating layer allows you to open an outer wind-protection layer while keeping the insulation layer closed thereby allowing airflow inside the jacket to evacuate moisture while avoiding direct contact with the skin.
- COMFORT FIT: Featuring stretch fabrics for an excellent close-to-body fit that accommodates a wide range of body types, a high neck shaped to move comfortably with you, a stretch layered waist with a silicone bead that lies flat without bunching up or riding up. Double layer cuff integrates seamlessly with the use of gloves.
- FEATURES: Back ventilation, 3 rear pockets with reflective laser-cut drain holes, Off-set water-resistant YKK Vislon zippers, secure front pocket for valuables.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C64LN7ZC |
| Age Range Description | adult |
| Apparel Fabric Stretch | High Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Best Sellers Rank | #3,837,563 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #2,873 in Men's Active & Performance Insulated Jackets |
| Brand Name | CASTELLI |
| Care instructions | Hand Wash Only |
| Closure Type | Zipper |
| Coat Silhouette Type | Aviator |
| Collar Style | Band |
| Color | Light Black/Silver Reflex-dark Gray |
| Customer Reviews | 4.1 out of 5 stars 7 Reviews |
| Fit Type | stretch |
| Fit to Size Sentiment | fits true to size |
| Has Coat Weather Resistance | Yes |
| Item Length Description | Standard Length |
| Item Weight | 8 ounces |
| Lining Description | Polyester, Insulating |
| Manufacturer | Castelli |
| Material | Polyester |
| Number Of Pockets | 3 |
| Occasion | Cycling |
| Origin | Made in the USA or Imported |
| Part Number | B4523505085-5 |
| Pattern | Solid |
| Pocket Description | Front pockets |
| Product Care Instructions | Hand Wash Only |
| Seasons | Winter |
| Sleeve Length Description | Long Sleeve |
| Sleeve Type | Long Sleeve |
| Style | Alpha Doppio Ros Jacket |
| Style Number | B4523505085-5 |
| Unit Count | 1.00 Count |
| Water Resistance Level | Waterproof |

## Images

![CASTELLI Men's Alpha Doppio RoS Jacket, Windproof, Water-Resistant Breathable Insulated Shell for Winter Biking, Race Cycling - Image 1](https://m.media-amazon.com/images/I/61FdM4fHRHL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good fit
*by D***N on February 2, 2024*

Good fit, great material used. Seems to be warm for cold days

### ⭐⭐⭐⭐ Excelente chamarra
*by S***A on January 25, 2024*

Una chamarra perfecta para tiempos de fríos

### ⭐⭐ Non ci siamo
*by N***O on December 20, 2024*

ho ordinato un prodotto nuovo ma mi è arrivato senza la confezione originale e privo di qualsiasi etichetta. Le cuciture sotto ad una delle ascelle sono molto precarie e su un punto si è creato un buco. Mi stupisco di come Amazon mi abbia inviato un prodotto in queste condizioni, ad ogni modo Amazon ne risponde sempre ed è sempre disponibile, sarei curioso di capire come avvengono certe cose. Rimanendo sul prodotto, premesso che non l'ho provato, lo reputo pessimo, se anche fosse stato utilizzato trovo riprovevole che, visto il costo, le cuciture siano prese cosi male. Un anno fa mi è stata regalata una mantellina antivento sempre Castelli, usata pochissimo, usurata in maniera vergognosa. On line vedo che in molti non concordano sulla qualità Castelli che, a mio avviso, è solo una leggenda a caro prezzo. Ho ordinato un marchio molto apprezzato e ho speso meno di 1/3! prodotto assolutamente sconsigliato per la qualità costruttiva!!

## Frequently Bought Together

- Castelli, Alpha Doppio RoS Jacket - Men's
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-05*