Castelli NanoFlex leg warmers review

Ideal for use in changeable weather, Castelli NanoFlex leg warmers offer insulation and water resistance

Castelli NanoFlex leg warmers
Reasons to buy
  • +

    Comfortable

  • +

    Light

  • +

    Water repellant coating

  • +

    Grippers work well

  • +

    Attractive fit

Reasons to avoid
  • -

    Coating wears off

  • -

    Fit not as ergonomic as other brands

You can trust Cycling Weekly. Our team of experts put in hard miles testing cycling tech and will always share honest, unbiased advice to help you choose. Find out more about how we test.

Castelli’s leg warmers utilise its water-resistant NanoFlex fabric, which is claimed to have the same breathability, stretch and warmth as the standard Thermoflex fabric. You may have seen Castelli NanoFlex leg warmers being used by the Cannondale-Garmin Pro team when the weather turns foul.

>>> Buyer's guide to arm warmers

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Oliver Bridgewood - no, Doctor Oliver Bridgewood - is a PhD Chemist who discovered a love of cycling. He enjoys racing time trials, hill climbs, road races and criteriums. During his time at Cycling Weekly, he worked predominantly within the tech team, also utilising his science background to produce insightful fitness articles, before moving to an entirely video-focused role heading up the Cycling Weekly YouTube channel, where his feature-length documentary 'Project 49' was his crowning glory.