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Castelli Beta ROS Jacket

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Beta ROS Jacket
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Product ID: 1261680

Castelli Beta ROS Jacket

Castelli's Beta ROS combines the freedom of a jersey with the protection of a light winter jacket. Polartec® NeoShell® is used to the front for effective windproofing, water-resistance and breathability, while Nano Flex Light further enhances breathability while creating a barrier to light rain and road spray. Cut for a close fit, the fabric won't flap about, and thanks to a four-way stretch in both fabrics, it won't feel restrictive either. 

The YKK® Vislon® zipper adds further opportunity for ventilation control, and there are three rear pockets for storage, complete with reflective detailing, so you're suitably covered across a range of riding conditions.


  • Rain or Shine (RoS) engineering
  • Polartec® NeoShell® four-way stretch fabric on front and upper sleeves is windproof, waterproof and highly breathable
  • Nano Flex Light woven fabric on back is highly breathable while blocking wind and splashes from light rain or wet roads
  • Close-to-body cut remains very comfortable thanks to four-way stretch of all fabrics
  • YKK® Vislon® zipper is easy sliding for quick ventilation control
  • Three rear pockets
  • Large reflective panel at lower back
  • Recommended temperature range: 8°-18°C / 46°-64°F
  • Manufacturer claimed weight: 212 grams (size large)

Castelli Beta ROS Jacket Sizing

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