Winter cycling jacket Castelli Alpha Ultimate Insulated Jacket

The Castelli Alpha Ultimate Insulated Jacket is the ultimate winter jacket. With it, you can ride in all weathers, down to -5 degrees. At the same time, this jacket provides top-quality insulation with Polartec Alpha technology and its double layer. Fully waterproof, the outer Polartec NeoShell fabric is breathable, so it lets sweat escape while repelling wind and rain. Lightweight and comfortable, this Castelli Alpha Ultimate Insulated Jacket will keep you warm in all conditions, without weighing you down too much either, given that the fabrics are stretchy.

As for the rest, the big highlight of this jacket is the double zip. While the classic zip allows you to ventilate your body when you need to, on a climb for example, the inside zip for the insulating layer is very practical. This system lets you open your jacket while leaving the insulating layer closed, so you don't catch a cold. A subtle touch that will keep you dry and warm in all conditions.

Technical specifications:

- Colours: black, dark blue
- Sizes: XS to 3XL
- Weight: 371 grams (size L)
- Temperature range: -5 to 12 degrees
- Polartec NeoShell stretch waterproof outer fabric
- Polartec Alpha insulation layer for added warmth and breathability
- External seam tape
- YKK Vislon double opening zip
- Seamless glued hem
- 3 back pockets, secure side zip pocket
- Reflex zones at lower back, shoulders and around cuffs

Size guide Castelli