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  • Castelli - Mortirolo 4 Jacket - Men's - Black

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  • Castelli - Mortirolo 4 Jacket - Men's - Black

Castelli Mortirolo 4 Jacket - Men's

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    6 Reviews


    Clear skies, dry roads.

    Dry winter days are often the ones that make us feel the guiltiest for not being out on our bikes; clear skies, bare roads, and sun bring far fewer challenges than messy, wet days do. If you're thinking about training through the winter (whether for a spring goal race or because you're tired of staring at your basement wall on the trainer for 3 months) the Castelli Men's Mortirolo 4 Jacket makes an excellent investment in dry-day comfort. Lightweight and warm, the Mortirolo doesn't come with as much protection from wind and rain as siblings like the Senza or Espresso, but what it lacks in weatherproofing, it makes up for in lightness.

    Cut with a slim silhouette, the Mortirolo 4 was bred for versatility; it's meant to be just as comfortable during a tough set of intervals as it is during a tempo ride or endurance-building base miles. Though not as contoured as Castelli's race kit, the Mortirolo easily accommodates a baselayer without ever appearing, or feeling, sloppy in the saddle.

    A Gore Windstopper X-Fast front panel does shield against rain and wind, while Castelli's thermal Warmer fabric, aptly named, covers the back of the jacket. It provides ample stretch and breathability to help you avoid overheating on cold days with warm sun, especially as you tackle hard efforts. Zippered vents along the chest further improve the jacket's ventilation, while a silicone waist gripper holds the drop hem in place as you stretch out into your drops.

    • Ride through clear, cold days in this versatile jacket
    • Fit accommodates a baselayer while remaining tailored
    • Fabric provides some wind- and rain-resistance with warmth
    • Drop hem with gripper protects against wheel spray
    • Chest vents prevent the jacket from trapping heat
    • Reflective accents help you stand out on the roads
    • Recommended for temperatures into the low-40s, but we use it in the 30s, too
    • Item #CST00DA

    Tech Specs

    [front] Gore Windstopper X-Fast, [back] Warmer
    zippered front vents
    3 rear
    Claimed Weight
    [large] 393g
    Recommended Use
    Manufacturer Warranty
    1 year

    Tech Specs

    • Reviews
    • Q & A

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    Awesome jacket but runs very small

    • Familiarity: I gave it as a gift but have feedback to share
    • Fit: Runs small

    I Ordered this jacket in an XL after calling and talking to a Competitive Cyclist rep. Received and tried on the jacket and couldn't come close to zipping it over my chest. Most to all other cycling clothes I wear a large.
    Luckily my 5'5 125 lb wife can wear it. Fits her very well.

    My Jacket Has the "i" so I rate it High

    • Familiarity: I've used it several times
    • Fit: Runs small
    • Size Bought: large
    • Height: 5'8"
    • Weight: 157lbs

    Generally I defer to Jonny Heinken's excellent review of Nov. 15,2017.

    Regarding sizing: I normally wear a medium in American lines like Pearl Izumi. I find that the large fits me better in Europen lines.

    The Large fits me as follows:
    • Torso length: a bit long.
    • Cut to torso: excellent.
    • Sleeve length: a bit long.
    • Fit in riding position: excellent comfort.


    • Familiarity: I've put it through the wringer
    • Fit: Runs small

    Castelli is based in the foothills of the Italian Alps (Dolomites). They know winter cycling.

    Application: Castelli officially rates this jacket for use in cold, dry weather from 60° down to 42° F. This is fantastic as this is the temperature range the majority of us ride in the Winter (in the 40s).

    1. The clever, innovative, front chest vents. These provide great versatility! For example, close the vents and select a winter-weight baselayer, ride hard, and this jacket will keep you warm down to about 40-35° (temp sensitivity is individual).

    Yet, with the vents open and a light-weight baselayer on, this jacket also works up to 60°. Awesome.

    2. Authentic Gore Windstopper textile is simply the best in the business. It is non-flapping, insulating, windproof, and water-resistant; yet breathable. So it protects fantastic against cold but also vents away sweat build-up extremely well. So no dreaded "sweat in a bag" occurs in this jacket.

    3. Also, Windstopper provides a soft and snug (and quiet) aerodynamic fit. This jacket does not flap in the wind.

    The overall performance and versatility of the Mortirolo jacket is benchmark in this temp range.

    Cons: The Mortirolo protects well against fog, mist, and drizzle. But Windstopper is not waterproof. So, if the weather is threatening full-on rain, take along a light, taped, dedicated rain shell (like the Riparo, eRJ, or Idro).

    ***Sizing: As castelli vets know, Castelli runs small. Italian sizing -is- different than US sizing. So, size up +1 here from your normal street size. Still, the Mortirolo will fit snug (as it is designed to).***

    PS. _The Mortirolo Pass is one of the highest and most famous climbs in Europe. It is a legendary stage at the Giro d'Italia.

    Ridculously small

    • Familiarity: I returned this product before using it
    • Fit: Runs small

    I have a number of Castelli XL jerseys and jackets. They all fit fine. This year for some reason everything seems to be running very small. Local bike shop said the same thing. XL more like a small large. Doesnt fit at all. Small in shoulders, arms etc. Short as well. Looks nice. Too bad.

    I have a XL Castelli Jacket already!

    • Fit: Runs small
    • Size Bought: XL
    • Height: 5'11"
    • Weight: 180lbs

    It pisses me off to no end that their tailoring is not consistent! I am 5'11" tall 180 pounds and these Jackets should fit! I usually wear a large. I have an XL Castelli Jacket already but these ride up into my arm pits, even though the sleeves are more than long enough! Who the hell you making this gear for, only stick men that are doping?

    Questionable Quality Control

    • Familiarity: I returned this product before using it
    • Fit: True to size

    After unpacking the jacket, I noticed that the 'Castelli' script logo on the waistband of the jacket was misspelled ("Castell" instead of "Castelli"). Returned immediately. If Castelli can't even get that right, what else have they missed...?

    Questionable Quality Control

    Kinda negative approach Joe. Anyway, I own 20+ pieces of Castelli kit -including the new Mortirolo 4 jacket (in black). Nothing I have ever purchased from Castelli has had any problems with missing letters. Just saying.