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CastelliGabba RoS Jersey - Men's

$199.99 - $209.95

Item # CST00TA

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Item # CST00TA

Gabba RoS Jersey

Some cyclists are graced with a temperate climate, and balmy weather year round, but the bulk of us aren't quite so fortunate. Most of us roll through drastic dips and highs through the year, with scorching summers and icy winters, not to mention the challenging seasons in between. These transitional seasons make for our favorite riding, and we know we're not alone with the classics soaring forward in full force as soon as the ice melts in the spring, but the shoulder seasons pose their own challenges too, often coming in the form of wardrobe confusion. Mornings hit us with frozen dew, but heat up to balmy afternoons, and leg and arm warmers become staples in our kits. Years ago Castelli offered a solution for those early spring and late fall rides, with a jersey that's been fine-tuned to fit flawlessly with arm warmers, making transitions through variable temperatures and weather all the easier. Castelli named that answer the Gabba, and with that, a legacy was born. This year Castelli graces us with the fourth iteration of the Gabba RoS Jersey, providing a sleek silhouette paired with top-tier materials for comfort and more elemental protection than ever before.

To strike a balance between breathability and warmth in windy and wet conditions, Castelli crafts the Gabba RoS using GORE-TEX's newest Infinium fabrics. It begins with GORE-TEX Infinium 205 Warm, brushed waterproof fabric on the front-facing surfaces to slice through icy wind and shower, while still allowing perspiration to escape. This partners up with GORE's Infinium 203 Stretch lightweight synthetic on rear-facing surfaces, which provides a huge increase in breathability and stretch for a tailored fit that doesn't restrict, and ultimate moisture management that doesn't quit when you're putting in major efforts. This is then topped off with a durable water-repellent finish so that surprise rain showers don't leave you saturated.

Castelli continues to pay the same attention to fit as it does to function with the Gabba as it has in years before. The sleeves are forward-oriented and the chest features an abbreviated fit compared to similar offerings from other manufacturers. This will likely make the Gabba RoS feel tight across the chest while you're standing, but allows it to perfectly follow your body position once you're in the saddle. It sits close to your chest and stomach instead of hanging down, eliminating the hippo-reminiscent look that so many of us despise in kit designed for cold or inclement weather, without going so far as to restrict your movement. The Gabba is to traditional winter garb as the burgeoning trend of short bodied, double vent suit jackets with high, round armholes are to the boxy tents that passed for US men's wear in the 1990s.

According to Castelli, the Gabba RoS works best in temperatures ranging from 48 to 61 degrees Fahrenheit, but your comfort will ultimately depend on how hard you're riding and how you choose to layer.

  • Breeze through shoulder seasons with Castelli's coveted Gabba
  • The 4th generation of Gabba features the latest fine-tuned fabrics
  • GORE Infinium 205 front panel slices through wind and showers
  • Manage perspiration and keep dry with Infinium 203 back panels
  • Abbreviated chest panel provides flawless fit in cycling position
  • Taped shoulder seams provide extra protection from showers
  • 2 rear pockets with integrated pump sleeve keep essentials at hand
  • Large reflective panel on drop-tail looks stealthy but boosts visibility

Tech Specs
Material[front panels] GORE-TEX Infinium 205 Warm, [rear panels] GORE-TEX Infinium 203 Warm
Seasonfall, spring
Pockets2 rear, 1 pump sleeve
Recommended Useroad cycling
Manufacturer Warranty2 year


Men's Apparel




















































How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.
Measure around your natural waistline, keeping the tape a bit loose.
Measure around the fullest part of your body at the top of your legs.
Using pants that fit well, measure the crotch seam to the bottom of the leg.

What do you think about this product?


>Rating: 5

Tight but flexible cut

I've used it once or twice and have initial impressions
True to size
Size Bought
5` 8"
175 lbs

Just bought a size-L. I have 33.5-inch waists, and a 39-inch chest. For context, I wear a medium in US shirts/jerseys, a 41 sports jacket, and L in aero cut jerseys. I am generally broad-shouldered, and do light strength training/core work 3-4 days a week. The fit is tight, but the fabric has some give. There is a bit of room in the torso; however it is somewhat tight across the back and through the armpits when standing up straight. The sleeves are tight on my upper arms. Nevertheless, I think the L is the appropriate size for me given that the fabric can stretch a bit. It fits nicely when in the drops. I prefer something that is tight to having fabric flapping in the wind. I am 53 years old, and accept that cycling kit is not all that flattering nor very comfortable to wear at the coffee shop.


Anyone have the Gabba 3 and this new version? Would very much like to hear if the ROS measures up to the original.

>Rating: 4

Like it but had to return and exchange

Runs small
Size Bought
5` 9"
160 lbs

In my opinion sized very small. I'm 5'9 and 160 lbs (174 cm, 72k) and wear a medium LL Bean, sometimes a small. I ordered a large. It fit like a stretch skin suit. I love the quality and style though so I am exchanging for an XL. I want to wear this as an outer layer during winter riding.

>Rating: 4

Great jersey, but too small

I returned this product before using it
Runs small

This is a high quality jersey and it looks great, but it's too small through the arms and chest for me. I lift weights in addition to cycling so it can be hard for me to find jerseys that fit well. However, I have been wearing Castelli jerseys in 3XL for years and they've always worked. This one felt like I was putting on a medium.

>Rating: 5

Great Jersey/Jacket

I've used it several times
True to size
Size Bought
6` 1"
185 lbs

For me a "perfect" cycling top that is an excellent option in Northern Michigan. Made from GORE-TEX Infinium fabrics it blocks wind to almost zero. I've used the jersey from temps around 50F up to the mid-60Fs. Depending on how you pair it with a base layer and arm warmers it can cover lots of different weather conditions. I looked at a similar jersey in long sleeve and one with zip off sleeves. Glad I went short and pair with arm warmers which are easier to peel on an off versus zips and short sleeve is more flexible than long. I'm 6' 1" and 185 and the XXL fits me just the way I like it - snug but not race fit. The Castelli cut and quality is really noticable and something I value. I ordered an almost identical jersey from Gore (I didn't realize it was almost the exact same garment) and sent it back since I liked the Castelli fit and style slightly better.

>Rating: 5

Outstanding kit

I've used it once or twice and have initial impressions
True to size
Size Bought
5` 8"
160 lbs

If you've even considered buying one, just get it now. Mine arrived earlier this week and today was a perfect first ride and test. I wore the Gabba with the Castelli Prosecco R short sleeve base layer and some arm warmers. Started my ride in overcast conditions at 52F/11C with rain in the forecast. For the first 45 minutes I stayed clear of any precipitation and climbed gently out of town. The Gabba kept me plenty warm but never overheating. Just before I got into the canyon and the real climbing started the rain came down and temperatures dropped to 48F/8C. During the remaining 2 hours of riding it rained continually (and occasionally quite hard). It tossed down some lightening and thunder just for good measure. Through it all, the jersey kept me absolutely dry. My feet and hands were soaked, water poured through my helmet, but my core stayed perfect. For the sake of science, I added a set of intervals to really test the Gabba and I never felt overheated or overdressed given the conditions. When I got home my socks and gloves needed to be wrung out in the garage, but my base layer was as dry as you'd expect after a ride (i.e. sweaty in spots, but absolutely no signs of water at shoulders, neck, sleeves, or waist). The two pockets were more than adequate for my usual extras (banana, phone, tube, pump, corona mask). The fit was pretty standard Castelli. The very helpful gearhead I ordered from (sorry I can't remember who) recommended I size up to a large and it fits very well. Not quite race fit, but snug enough. For reference, I'm definitely built more like a climber than a cyclist and most jerseys are very tight across my shoulders/chest. As a piece of foul weather gear, the Gabba is hands down a new favorite. Without arm warmers and/or a lighter base layer I think it could be used into the mid-50's pretty comfortably, and could also be a go-to jersey well into the 30's with proper layering.

super helpful review!