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Castelli Free Aero Race 4 Short



Castelli's no-compromise approach to creating the best cycling clothing in the world is nowhere more evident than in the Castelli Free Aero Race 4 Short. This is the short that's undergone 12 years of development and refinement, with literally hundreds of thousands of miles on the road. This year Castelli has made subtle but important refinements, with a new leg gripper that still feature a lie-flat raw-cut edge but now has vertical silicone stripes to keep it in place without restricting stretch. This high performance short is constructed with Vortex dimpled fabric on the outer legs, which boosts aero performance, while Forza fabric with Lycra is used on the inner legs for a perfect fit. The soft and comfortable waist gripper is dipped at the front for comfort in the riding position. The revolutionary Progetto X2 Air Seamless Seat Pad provides the softest first-rate cushioning with excellent airflow. Reflective details enhance low light visibility. Please Note: Castelli use Italian sizing which is significantly smaller than the standard US equivalent, we recommend taking one size larger than your normal size.

Note: Please check sizing chart before ordering, Castelli clothing runs small, so we recommend ordering at least one size larger than what you might normally wear.
Castelli Progetto X2 Air Seamless Seat Pad

  • Pro-level seat pad for maximum comfort
  • New seamless skin-care layer is softer against the skin and reduces abrasion
  • Separate saddle-shaped cushioning layer with progressive damping through high-density foam and gel inserts

Model Number
Item Code
Castelli Free Aero Race 4 Short