LIGHT JACKET OR WARMEST JERSEY, RAIN OR SHINE

Fitting somewhere on the spectrum between a light jacket and your warmest jersey, our most technical jersey gets a significant performance upgrade this year.

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 jersey ticks both of those boxes.

Both the front and back materials are brand new this season and 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.

Key Features:

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
Weight: 380g

Occasionally, without notice, manufacturers change product design and/or specifications.

	XS	S	M	L	XL	XXL	XXXL
Chest	88 cm	92 cm	96 cm	100 cm	105 cm	110 cm	115 cm
Waist	76 cm	80 cm	84 cm	88 cm	93 cm	98 cm	103 cm

IN STOCK SRAM

Castelli Alpha Ros Light Long Sleeve Jersey

Castelli Men's Jersey Size Chart

No longer available

We have lots of other options available for you: