The Alpha 150 Jacket by Castelli is a highly developed 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 pleasant warmth. This jacket is the result of over a decade of research and development aimed at optimizing comfort and functionality during winter rides. The Alpha 150 Jacket is ideal for cyclists who want to stay active in cool temperatures without sacrificing comfort. It features a close-fitting, stretchy design that makes wearing a winter jacket nearly unnoticeable. Additionally, the jacket is environmentally friendly, as it is made from recycled materials and is free from PFAS.
Material composition | 16% spandex, 30% elastane, 32% polyester, Inserts 2: 70% polyamide, Inserts: 52% polyamide, Main material: 100% polyester |
Target group | Men |
Cycling jacket type | Bicycle softshell jacket |
Clothing size | 3XL |
Bike area of use | Racing bikes |
Season | Winter |
Item number | 59893829 |
Manufacturer | Castelli |
Category | Cycling jackets |
Release date | 1.7.2025 |
Colour | Black |
Exact colour description | Black |
Upper | Polyamide, Polyester, Spandex |
Material composition | 16% spandex, 30% elastane, 32% polyester, Inserts 2: 70% polyamide, Inserts: 52% polyamide, Main material: 100% polyester |
Filling material | POLARTEC ALPHA |
Target group | Men |
Age group | Adults |
Cycling jacket type | Bicycle softshell jacket |
Clothing size | 3XL |
Bike area of use | Racing bikes |
Fit | Slim fit |
Clothing functions | Breathable, Insulating, Water-repellent, Windproof |
Zipper type | Continuous front, With windlap |
Hood type | Stowable |
Jackets Equipment | Ventilation, thumb loops, hood, Windproof inserts |
Layer of clothing | Outer layer / weather protection layer |
Pockets | 1 breast pocket, 3 back pockets |
Fabric properties | Heat insulating, highly breathable, Lightweight, Water-repellent, Windproof |
Season | Winter |
Country of origin | China |
CO₂ emissions | 7.34 kg |
Climate contribution | CHF 0.18 |
Weight | 381 g |
How often does a product of this brand in the «Cycling jackets» category have a defect within the first 24 months?
Source: Digitec GalaxusHow 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 GalaxusHow often is a product of this brand in the «Cycling jackets» category returned?
Source: Digitec Galaxus
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...
