Castelli Idro Pro 3 Jacket review – an utterly uncompromising 'hyper-jacket'

A jacket that uses the best materials available to great effect but it is very expensive

Castelli Idro Pro 3 Jacket
(Image credit: M. Grele)
Cycling Weekly Verdict

At $449.99 / £410 RRP this is a serious investment and a serious show of intent. You are getting the best materials available currently and that doesn't come cheap. This is a very focused design – it does one thing and utterly excels

Reasons to buy
  • +

    ShakeDry fabric is the most advanced currently available

  • +

    A very purposeful cut

  • +

    A supremely capable garment

Reasons to avoid
  • -

    ShakeDry fabric is expensive

  • -

    Slim arms make it hard to put on on the move

  • -

    Only available in Black

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.

The Idro Pro 3 jacket is part of Castelli's Rosso Corsa line, which is the Italian brand's highest tier of design and function. It uses Gore-Tex Shakedry fabric for the main body and arms, allied with a Stretch Gore-Tex fabric for the body sides and under arm areas to create a close fitting yet unrestricted garment. There is a YKK Vision waterproof zipper to stop water ingress too.

Its essentially a greatest hits of all the best waterproof cycling jackets rolled into one.

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Over 40 years cycling in a variety of disciplines including road riding, commuting, a self-supported Land's End to John o' Groats trip, XC mountain biking and several Polaris Challenge two-day events. Adventure, escape and fun are the motivations for my riding. I also love bike and kit design and have fillet brazed a couple of framesets using Reynolds 853 steel tubing for myself. A very satisfying experience to ride your own bespoke bike!

Height: 180cm

Weight: 66kg