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Product description
We set out to create the perfect winter cycling jacket – the sole goal was to make the best jacket we could, using the best materials and innovative construction to ensure comfort in the widest range of conditions, including cold and wet. Alpha 150 is the result of 12 years of continuous refinement of a concept that will keep you warm and dry, inside and out.
New for 2025, the Alpha 150 jacket now uses exclusive Castelli Polartec® AirCore™ fabric for unparalleled breathability in the category of wind- and water-resistant materials. The Polartec Alpha inner insulation provides warmth while also improving moisture wicking. The elastic, close-fitting cut means you won't even feel like you're wearing a full winter jacket.
This jacket is ideal for cool and dry days, but it will withstand everything except all-day heavy rain, when you'll likely reach for a waterproof outer layer. The fact that it uses recycled yarns and is PFAS-free is a bonus feature of the best winter jacket we have ever made.
The Alpha 150 jacket is made so you can ride all winter. Comfortably. No excuses.
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Castelli ALPHA 150 W women's jacket
The best jacket for cold weather. The outer layer of Polartec® AirCore™ protects against wind and rain while maintaining high breathability. The inner layer of Polartec® Alpha™ provides insulation.We set out to create the perfect winter cycling jacket – the sole goal was to make the best jacket we could, using the best materials and innovative construction to ensure comfort in the widest range of conditions, including cold and wet. Alpha 150 is the result of 12 years of continuous refinement of a concept that will keep you warm and dry, inside and out.
New for 2025, the Alpha 150 jacket now uses exclusive Castelli Polartec® AirCore™ fabric for unparalleled breathability in the category of wind- and water-resistant materials. The Polartec Alpha inner insulation provides warmth while also improving moisture wicking. The elastic, close-fitting cut means you won't even feel like you're wearing a full winter jacket.
This jacket is ideal for cool and dry days, but it will withstand everything except all-day heavy rain, when you'll likely reach for a waterproof outer layer. The fact that it uses recycled yarns and is PFAS-free is a bonus feature of the best winter jacket we have ever made.
The Alpha 150 jacket is made so you can ride all winter. Comfortably. No excuses.
Product features
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The best jacket for cold to very cold conditions
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Outer layer made of Castelli's exclusive 150 g electrostatically spun air-permeable membrane Polartec® AirCore™ provides top-notch breathability
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Inner lining Polartec® Alpha™ for significant insulation at extremely low weight, with excellent moisture wicking
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Two-way YKK® Vislon® zipper for easy sliding, covered for additional wind and rain protection
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Key/money pocket with zipper on the front
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3 back pockets
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Reflective trim at the bottom of the pockets
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Product details
| Sex | Women |
| Colour | hibiscus |
| Jacket features | insulated, windproof |
| Temperature range | -2 - 10 °C |
| Weight | 316 g |
| Material composition | Main material: 100 % polyester Top of collar, inner collar, cuffs: 52 % polyamide, 32 % polyester, 16 % elastane Lower torso: 70 % polyamide, 30 % elastane Lining: 100 % polyester |
| product ID | 364006 |
Jerseys, jackets, vests, functional underwear
Pants
| Size | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Chest (cm) | 79 | 84 | 89 | 94 | 99 |
| Waist (cm) | 63 | 68 | 73 | 78 | 83 |
| Size | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Hips (cm) | 87 | 92 | 97 | 102 | 107 |
| Inseam (cm) | 75 | 76 | 77 | 78 | 79 |
Bras
| Size | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Bust (cm) | 81 - 85 | 86 - 90 | 91 - 95 | 96 - 100 | 101 - 105 |
| Bust (cm) | 65 - 69 | 70 - 74 | 75 - 79 | 80 - 84 | 85 - 89 |
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Castelli is a classic Italian brand known for its high-quality cycling apparel. They have been on the market since 1876, and they started with clothing for famous Italian football teams. In 1910, their first cycling clothing was made for the world champion Alfredo Binda. They introduced to marked their aerodynamic elastic bibs made from Lycra in 1977. Their list of groundbreaking innovations is very long, and it probably is also a reason why are they so famous. Castelli offers top apparel for all conditions and every bike discipline.
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