Castelli Nano Flex Pro Race Bib Shorts

The Nano Nanoflex Pro 2 Race Bib Shorts are a continuation and evolution of the race-ready and pioneering Omloop thermal shorts. First created for racing and inspired by Pro riders who improvised longer shorts at the early season Omloop Het Nieuwsblad, these latest shorts keep the extra 10 centimetres length to provide more warmth over the knees.

The major leap forward to performance comes by the way of the Nano Flex fabric. Soft, stretchy, breathable and as warm as their Thermoflex fabric, it’s superb in cold dry weather but this material provides extra protection on wet days. The soft fleecy inner is luxuriously warm too. For early season races and training where the weather can turn quickly from good to bad and back again, there’s nothing better.

As you’d expect, Castelli gets the details just right too. Fewer seams prevent water ingress while also reducing areas that could chafe. And a mesh bib section improves moisture control and lets you easily tailor your base-layer to suit your specific riding conditions.

Then there’s the superb Progetto X2 Air seamless seat pad inside. Utilising ventilating perforations, it keeps you more comfortable on endurance road rides. The design allows air and moisture to flow directly to the surface fabric for quick evaporation maintaining dryness. The seat pad is constructed with three-layer components, each dedicated to a specific purpose to create the most comfortable seat pad available.

Created as a pro-rider tool for spring Classics racing, the Nanoflex Pro 2 Race Bib Shorts offers you outstanding comfort and performance for your very own spring racing and training endeavours.