Castelli Alpha RoS Jacket

In many ways, the Castelli Alpha RoS is the ultimate winter jacket – providing protection in both wet conditions, as well as allowing you to ride in temperatures as low as -5°. As part of the Rain or Shine collection, or RoS for short, Castelli has gone to great lengths to ensure this jacket provides total protection all the elements.   

Designed with two separate layers – the Gore wind stopper outer fabric provides protection for the wind and rain, while the separate inner layer offers a high level of warmth, insulation and breathability.  To ensure total protection from the wet, Castelli has even sealed the seams and covered the YKK zip to prevent water ingression into these particularly exposed areas.   

As part of the Rosso Corsa range, this jacket offers a race-ready anatomical fit. With a flat laying zip and collar, Castelli has ensured that moisture and cold are kept out, and warmth is kept in. This jacket is complete with three rear pockets for effective, easily accessible storage.   

• Rain or Shine engineering provides insulation and breathability for cold and dry rides, with effective waterproofing for wet rides
• Gore® Windstopper® 150 fabric provides wind protection with high breathability and effective rain protection
• Seam sealing on shoulders, reduced seaming and double stitching keep you mostly dry
• Alpha construction separates wind/water protection layer from insulating layer
• Better ventilation and better moisture evaporation thanks to separate insulating layer
• Partially covered waterproof YKK® Vislon® zipper slides easily and lies flat
• Raw-edge waist lies flat and moves with you
• Raw-edge wrist cuffs lie flat for a perfect interface with gloves
• Stretch fabrics with advanced patterning make for an excellent close-to-body fit that still accommodates a wide range of body types
• 3 rear pockets with reflective laser-cut drain holes
• Weight: 515g