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The Castelli Aero Race 5.1 Full Zip Jersey builds on the race-leading aerodynamics while making the jersey more comfortable and durable. Updated fabrics on the front and back showed a 2 watt gain in the wind tunnel. But it’s not just aero; it’s also extremely light, coming in at just 103g. That’s about 40g lighter than a standard jersey and almost as light as a Climber’s Jersey.

The lightweight polyester fabrics in this jersey dry nearly instantly, making this the go-to choice even for cool- or wet- weather racing, while the compression band around the pockets keeps them from moving or bouncing no matter how you load them up.

  • Velocity dimpled fabric on front
  • 3D mesh on back to prevent overheating
  • Mesh arm bands
  • Compression band around waist keeps 3 rear pockets in place
  • Silicone gripper elastic
  • Full-length YKK® Camlock zipper
  • Reflective heat-transfer viz strips
  • Productcode: N1422093

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