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Castelli for inGamba Women's Idro W Black Jacket


A jacket that weighs less than a jersey? Real Gore-Tex®, no less? And it packs up to fit in half a jersey pocket? And it’s the most breathable Gore-Tex® ever? Hard to believe, but it’s all true. This jacket is a game changer. It’s fully waterproof, as you expect from Gore-Tex®, but with its exceptional breathability and packability you’ll find that it replaces all your other shell jackets. If your ride has the slightest chance of rain or a long descent or the possibility of temperatures dropping, this jacket will automatically go in your pocket. You can confidently do longer rides in conditions that you would have avoided with all your old jackets. While you can get this fabric from other brands, you can’t get the Castelli fit, design and construction.



100% waterproof protection is only the start: it’s the lightest, most compact, most breathable waterproof jacket we’ve ever made. It’s so versatile you’ll use it as the shell layer any time you need to keep out wind or rain, yet when not in use it fills only half of a jersey pocket.



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  • GORE-TEX® SHAKEDRY™ 2-layer waterproof breathable fabric
  • YKK® waterproof Vislon® zipper
  • Silicone elastic waistband
  • Fully taped seams for total waterproof construction
  • Reflective Castelli wordmark
  • Packs up small to easily store in jersey pocket

Click here to view the full Castelli x inGamba catalogue