FREE UK Delivery
365 Day Returns
Finance Available
Save up to 70% in our January Sale

Castelli NanoFlex Bib Knicker

Castelli NanoFlex Bib Knicker
Castelli NanoFlex Bib Knicker
Review this item
NanoFlex Fabric for Stretch and Water Resistance
Kiss3 Pad
Giro3 Single Layer Leg Grippers
Lead Time & Availability
Please call us on +44 (0) 1978 663001 for availability.


Key Features

About Castelli

Castelli Size Guide

Castelli Clothing Technology

Kiss 3 Pad Technology

Q & A


The fabric used in Castelli's NanoFlex bib knicker is similar to their Thermoflex in that it is warm and breathable, but they apply a five phase nanotechology treatment to make it extremely water resistant.  It's not classed as 100% waterproof, but in all but the heaviest sustained downpours, the water will just bead up and run off.  This is also helped by the construction with very few seams to minimise ingress points.

Castelli's KISS3 seat pad is used in the NanoFlex bib knickers, and it will offer all day comfort thanks to it's continuously variable thickness to eliminate obvious ridges with changes of thickness as in other pads.  Giro3 single layer leg grippers hold the bottom of the knickers in place securely and unobtrusively.

The mesh bib is breathable and will sit under jerseys without you really noticing and there is reflective trim to keep you more visible when the light starts to go.

Temperature range: 10 - 20 deg

Note: Castelli clothing is sized small, Tweeks Cycles recommend you select one size above normal for an athletic fit, or two sizes above if you prefer a more relaxed fit.
NB: Image for illustration purposes only