Sorry, this product is no longer available!
Castelli Sidi Cielo Aero Race 4.0 Short Sleeve Jersey is no longer available at Merlin Cycles. However you may find an alternative or updated product below.
Castelli Cielo AR 4.0 Cycling Short Sleeve Jersey
Castelli Cielo AR 4.0 Cycling Short Sleeve JerseyCastelli Cielo AR 4.0 Cycling Short Sleeve Jersey

This item was discontinued 22nd September 2017.

If you require help finding an alternative to this product please contact customer services.

Code: CS81021420
Castelli Sidi Cielo Aero Race 4.0 Cycling Short Sleeve Jersey
The Castelli Sidi Aero Race Jersey is a significant leap forward in aerodynamics and weight, but weve kept this model in the line because its one of the most comfortable all-around jerseys weve ever made. And its still one of the most aero jerseys out there. Perfect fit and excellent moisture management with a nice fresh graphic. 
  • Saves approximately 12 watts at 40km/h compared to a standard cycling jersey, and a full 12 watts faster than the industry-leading model
  • Velocity Dry fabric on front and shoulders for improved wicking and faster drying
  • Zipp YKK Vislon
  • Nervato fabric at arm holes for improved aerodynamics
  • Silicone gripper elastic at waist
  • GIRO3 arm elastic for flat, aero fit
  • Three rear pockets
  • Castelli Jersey with Sidi's Logo
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Sizing Information for Castelli Clothing:
Castelli Size Charts

Great top but had to by an XL. I am usually M/L but the L was very tight on the arm.
Very tight fit. I'm 6'1", 180 lbs and an XL is too tight