Sous-maillot manches longues hiver Castelli Cold Days 2nd Layer 2027

Castelli ’s Cold Days 2nd Layer long-sleeved winter base layer has been designed to provide maximum warmth and comfort during rides in cold weather. This second layer is worn between a technical base layer and a jacket to enhance thermal insulation whilst maintaining excellent freedom of movement. Its Polartec Alpha 90 active insulation fabric, made from recycled PET, offers a remarkable balance of warmth, lightness and breathability.

Thanks to its excellent moisture-management properties, it effectively wicks away sweat to keep the body dry even during sustained exertion. Its high collar effectively protects the neck area from cold draughts, whilst the asymmetrical zip adds a practical touch and improves the garment’s overall fit. Ideal for winter conditions, this base layer is a high-performance mid-layer that allows you to cycle for longer in the cold without compromising on comfort.

Technical specifications:

- Long-sleeved winter base layer Castelli Cold Days 2nd Layer
- Colours: Black or Grey
- Sizes: XS to XXXL
- Recommended temperature range: -8°C to +5°C
- Fit: Regular
- Polartec Alpha 90 insulation with recycled PET
- Worn between a base layer and a jacket
- Asymmetrical zip for added comfort
- Stand-up collar
- Weight: 176 g
- Brand: Castelli 

Size guide Castelli