Castelli Alpha 150 Jacket

S
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Colour2

Size5

Product details

The Alpha 150 Jacket by Castelli is a highly advanced cycling jacket specifically designed for cold weather conditions. It combines innovative materials and thoughtful design to ensure both warmth and breathability. The outer layer made of Polartec® AirCore™ protects against wind and rain, while the inner Polartec® Alpha™ insulation provides effective heat retention. This jacket is the result of years of research and development aimed at providing cyclists with a comfortable experience in winter conditions. The stretchy, close-fitting design ensures that the jacket is not only functional but also pleasant to wear. Additionally, the Alpha 150 Jacket is environmentally friendly, as it is made from recycled materials and is free from PFAS. It is ideal for cold, dry days and offers sufficient protection against light rain, making it the perfect choice for winter.

  • Advanced Polartec® AirCore™ outer layer for wind and rain protection
  • Polartec® Alpha™ insulation for effective warmth and moisture regulation
  • Close-fitting design for high wearing comfort
  • Made from recycled materials, free from PFAS
  • Practical zippered pockets for secure storage.

Key specifications

Material composition
16% spandex30% elastane32% polyesterInserts 2: 70% polyamideInserts: 52% polyamideMain material: 100% polyester
Target group
Men
Clothing size
S
Bike area of use
Racing bikes
Season
Winter

General information

Item number
59893522
Manufacturer
Castelli
Category
Cycling jackets
Release date
1.7.2025

Colour

Colour
Black
Exact colour description
BlackLight Black

Material

Upper
PolyamidePolyesterSpandex
Material composition
16% spandex30% elastane32% polyesterInserts 2: 70% polyamideInserts: 52% polyamideMain material: 100% polyester
Filling material
100% polyester

Target group

Target group
Men
Age group
Adults

Clothing properties

Clothing size
S
Bike area of use
Racing bikes
Fit
Slim fit
Clothing functions
BreathableWater-repellent
Layer of clothing
Outer layer / weather protection layer
Pockets
3 back pockets
Fabric properties
BreathableHeat insulatingLightweightWater-repellentWindproof
Season
Winter

Origin

Country of origin
China

Voluntary climate contribution

CO₂ emissions
5.39 kg
Climate contribution
CHF 0.13

Product dimensions

Weight
381 g

Package dimensions

Length
37.40 cm
Width
25.60 cm
Height
11.70 cm
Weight
352 g

30-day right of return and free return shipment
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Cycling jackets» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 1.Vaude
    0.2 %
  • 2.Castelli
    0.4 %
  • 2.Wowow
    0.4 %
  • 4.Fox
    0.5 %
  • 4.Gore Wear
    0.5 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Castelli
    Not enough data
  • 1.Endura
    7 days
  • Agu
    Not enough data
  • Btwin
    Not enough data
  • dirtlej
    Not enough data

Return rate

How often is a product of this brand in the «Cycling jackets» category returned?

Source: Digitec Galaxus
  • 6.Fox
    22.8 %
  • 7.Proviz
    25.3 %
  • 8.Castelli
    25.6 %
  • 9.Agu
    26.1 %
  • 10.dirtlej
    26.3 %
Source: Digitec Galaxus

Translation: machine translated
Very good90/100
Rennrad Radsportmagazin Logo
Rank 7 out of 40Rennrad RadsportmagazinThermo-Jacken und -Radhosen im TestReleaseDecember 2025
  • PositiveFit
  • PositiveConstruction
  • PositiveInsulation
  • PositiveWeather protection
  • NegativeHigh price

One of the warmest jackets in this test field comes from Castelli. The Alpha 150 impressed with its top insulation even at sub-zero temperatures. Castelli combines a windproof and water-repellent Aircore outer material with a lightweight, warm and hydrophobic Polartec Alpha insulation layer on the inside...