Product details

€ 149,95

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The original Omloop knee-length thermal short now in full Nano Flex 3G fabric for all conditions from dry to cold to wet.


You could call this a convergence product. A few years back we pioneered the first Omloop thermal short, inspired by pro riders cutting off their knee warmers to just the bend of the knee at the Omloop Het Nieuwsblad on a brisk sunny morning. Castelli set about making a bibshort cut right to the bend of the knee and realized that they could make it without a gripper elastic and that the extra 10 centimeters of fabric add a lot of warmth. Those first Omloop shorts were made for cool, dry conditions, like the race that inspired them, using our Thermoflex fabric.

Fast-forward to 2020 and the new third generation of the Nano Flex fabric is as soft, stretchy, breathable and warm as the Thermoflex fabric, so now Castelli can make this short ideal for cool and dry conditions, but it's also excellent on wet days.

It's still a tool for professionals - these shorts are identical to the model Castelli supplies to professional athletes.


  • Nano Flex 3G fabric is water repellent, stretchy and warm thanks to the luxuriously soft brushed inside
  • Reduced seams for comfort and to prevent water from coming in during wet rides
  • Knee-length cut for extra warmth that doesn't require a gripper elastic
  • Mesh bibs don't add warmth to the upper body so you can dress for the conditions
  • Progetto X2 Air seamless seat pad for long hours in the saddle
  • 12°  -20° C / 54° - 68° F
  • Weight: 376 g
castelli size chart man

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