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In Stock & Ready To Ship — XT/Ultegra RT-MT800 Disc Rotors
Castelli Mens Idro 3 Jacket
Castelli Mens Idro 3 Jacket
Castelli Mens Idro 3 Jacket
Castelli Mens Idro 3 Jacket
Castelli Mens Idro 3 Jacket
Castelli Mens Idro 3 Jacket
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Castelli Mens Idro 3 Jacket
Castelli Mens Idro 3 Jacket
Castelli Mens Idro 3 Jacket
Castelli Mens Idro 3 Jacket
Castelli Mens Idro 3 Jacket
Castelli Mens Idro 3 Jacket

Castelli Men's Idro 3 Jacket

Mfg PartNum:
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Lightweight, Packable, And Unforgettable.

Take on any ride with the lightest and most packable jacket created so far. The Castelli Idro 3 Jacket is fully waterproof, highly breathable, and features an innovative fit system that is perfect for any rain ride or long, chilly descent.

Starting where you need it most, the Gore-Tex® ShakeDry™ technology sheds impressive amounts of water while still being highly breathable. The entire lower back is in Gore-Tex® Topo stretch fabric to expand in diameter if you have a few extra winter pounds or full pockets. Meanwhile, a fully waterproof YKK® Vislon® zipper slides easily for simple ventilation when you need it most.

The Idro 3 also features an internal wrist gaiter that seals the cuff and even integrates with your favorite pair of gloves to keep rain from sneaking in. More of a night rider? Reflective tape placed on both the sleeves delivers high visibility in low-light conditions.


  • Ultra-breathable Gore-Tex® ShakeDry™ technology sheds water
  • Gore-Tex® Topo stretch fabric on lower back to expand for a perfect fit
  • Reflective tape on back of both sleeves for high visibility in low-light conditions
  • YKK® Vislon® waterproof zipper slides easily for ventilation adjustments
  • Internal wrist gaiter seals wrist and integrates with the glove to keep water out

Free Exchanges: This product qualifies for free exchanges within the first 60 days after order. We'll cover the shipping both ways for US customers if you need a different size and/or color of this product. Returned product must be in new condition with all labels and packaging. Free exchanges apply only for product in stock or available for backorder.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.


Sleeve Type: Long Sleeve 

Black - Medium

Mfg PartNum: B4521501010-3 

Black - Large

Mfg PartNum: B4521501010-4 

Black - X-Large

Mfg PartNum: B4521501010-5 

Black - 2X-Large

Mfg PartNum: B4521501010-6 

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*Orders received before 3:00PM Pacific time are shipped the same day (Mon-Fri). Orders over $50
are shipped free (USA only, excluding AK and HI). Some exceptions apply. See Shipping for details. 31


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