Bold, for the cold

Arm warmers are popular for cool weather riding, but sometimes the jersey you are placing them under isn't warm enough for your core. When this happens, it's better to ditch the warmers and go with a cool weather long-sleeve jersey such as the Castelli Sfida Fill-zip.

Castelli is known for designing both functional as well as graphically bold kits. The Sfida is no exception. Warmer fabric was used in two versions on the jersey. First, it used the traditional panels on the front to keep your core sheltered from the cold. Second, it used its newer Warmer X-Stretch on the sleeves. This soft, stretchy, warm fabric allows for optimal elbow bend while in riding position so you won't have to tug and pull your sleeves into place. Additionally, a silicone gripper was added at the waist to keep the jersey in place and to seal out cold.

For all of your winter riding essentials, Castelli included three large back pockets. Reflective tabs sewn into rear seams increase low-light visibility for those days when you are so comfy in your Sfida jersey that you end up riding until dusk.

The Castelli Sfida Long Sleeve, Full-zip jersey is available in sizes Small to XXX-Large and in four graphically bold colorways: White/yellow fluo/black, Black/white/grey, Black/white/red, and Black/white/orange.

  • Reviews
  • Q & A

Nice jersey but not what I wanted

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

I bought a few LS Jersey's looking for a really basic one as we head into shoulder season. I wasn't looking for thermal but just a Jersey that would provide light warmth stand alone and potential layer as it gets cooler.

This jersey is basically fleece weight (think Patagonia R1 level if you're familiar). That being said, it's a really nicely made jersey and would be great for my area (Intermountain West) in early spring or late fall. Should provide good warmth in the mid 40s to 50s in a dry climate.

I returned this but did try it on. Fits true to the size chart.


  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: Runs small
  • Size Bought: XXL

I got an Alpha ROS to replace a Transparente and the Alpha is a good bit warmer so I slot this in at the 50-60 degree range and as a base layer. Today, I used it for a ride from 42 to 56 degrees with a light Craft base layer. It was slightly overcast and I was more than warm the entire ride. Good fit, nice quality slightly warmer than my Puro.