Castelli Nanoflex Pro bib tights

With a combination of weatherproof materials and high-end comfort the Castelli Nanoflex Pro bib tights are ideal for taking on winter




  • Nanoflex material shrugs off water
  • The Progetto X2 seatpad is one of the most comfortable tested
  • Comfortable articulated cut


  • Waterproof inner calf material can be a little baggy on skinny ankles
  • Weight

Price as reviewed:


Castelli has created a supremely versatile pair of tights to take you through the wettest of winter rides.

The fit is very snug and you certainly feel the extra layers of weatherproofing on the knees, thigh and bottom areas.

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In torrential rain they coped admirably, but they are not ‘waterproof’ as I still ended up wet. They did, however, possess the ability to reduce the feeling of being soaked and that horrible cold stinging sensation when riding through wintry puddles.

Castelli Nanoflex pro bibtight full size

The really good news is that Castelli has included its Progetto X2 Air chamois, which has to be my favourite pad — incredibly comfortable for long days in the saddle but not too thick and bulky.

>>> Buyer’s guide to bib tights

Castelli kit can size quite small but I was able to fit the medium pair well without needing to go up a size, despite being over 6ft tall.


Weight: 365g
Sizes: S, M, L, XL, XXL, XXXL