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Castelli Alpha RoS W Light Jacket

Castelli Alpha RoS W Light Jacket
  • Color: Brilliant Pink/Black
  • Color: Brilliant Pink/Black
  • Color: Light Black/Black
  • Color: Light Black/Black
  • Color: Silver Gray/Black
  • Color: Silver Gray/Black
Please select options


RoS stands for Rain or Shine. It’s a label we give our most advanced products that excel in both dry and wet conditions. For dry conditions, you’re looking for comfort along with breathability to prevent you from getting wet and chilled from the inside. But with wet-weather clothing, you’re looking for protection that will help you stay warm by keeping the rain out and letting sweat escape. The Alpha RoS W Light Jacket ticks both of those boxes. Both the front and back materials represent a significant step forward in rain protection. These fabrics are used with reduced seaming and seam-sealing where necessary. We call this functional waterproofing because while we don’t guarantee that no drop will ever enter the jacket, we promise you that this is our best effort to keep you warm and dry in the widest range of conditions.

- Lightweight double-layer wind jersey with significant rain protection 
- Windstopper 150 front and sleeves 
- Nano Flex Xtra Dry back for the most significant nonmembrane water protection available 
- ProSecco Strada inner liner with 2nd front zip 
- Waterproof YKK Vislon zipper 
- Articulated collar that fits better whether you’re standing or riding 
- Front zippered pocket 
- 3 rear pockets with reflective laser-cut drain holes 
- Raw-edge waist lies flat and moves with you 
- Advanced patterning makes for excellent close-to-body fit

Part Numbers

Option UPC MPN Store SKU
Brilliant Pink/Black / X-Small 08055688929671 A17539288-1
Brilliant Pink/Black / Small 08055688851910 A17539288-2
Brilliant Pink/Black / Medium 08055688929688 A17539288-3
Brilliant Pink/Black / Large 08055688929695 A17539288-4
Brilliant Pink/Black / X-Large 08055688929701 A17539288-5
Light Black/Black / X-Small 08055688543389 A17539085-1
Light Black/Black / Small 08055688543396 A17539085-2 39561
Light Black/Black / Medium 08055688543402 A17539085-3 39562
Light Black/Black / Large 08055688543419 A17539085-4 39563
Light Black/Black / X-Large 08055688543426 A17539085-5
Silver Gray/Black / X-Small 08055688929718 A17539870-1
Silver Gray/Black / Small 08055688929725 A17539870-2
Silver Gray/Black / Medium 08055688929732 A17539870-3
Silver Gray/Black / Large 08055688929749 A17539870-4
Silver Gray/Black / X-Large 08055688929756 A17539870-5