Shedding grams and saving watts is tricky business, especially when you're wading through hyperbolic claims and constantly-changing technologies to choose kit that will actually make a difference. Before your summer race calendar gets going, upgrade your race kit with Castelli's Aero Race 5.1 Full Zip Jersey to stay aerodynamic and comfortable as you vie for a spot on the podium.
Part of what makes the Aero Race 5.1 so aerodynamic is its virtually second skin fit, which eliminates any need to size down to ensure the jersey mimics your body movements in the saddle. Castelli crafts the front of the impeccably-cut jersey using its Velocity fabric, a featherweight textile engineered with closely-woven fibers that usher air over your shoulders and back with their dimpled surface. Castelli, never satisfied with complacency, further improved Velocity this year to enable it to save a claimed two additional watts over last year's version of the fabric, making this the fastest Aero Race to date.
On the back, incredibly breathable 3D mesh fabric lifts moisture away from your skin to evaporate before you can think about feeling soggy, while its dimpled surface complements Velocity to help you slice through the wind. Castelli also includes three rear pockets held close to your body by a compressive mesh band for storing race fuel, along with reflective accents to keep the Aero Race as practical as it is aerodynamic.
- Ride for a podium spot in this wind-cheating race jersey
- Contoured, race fit saves watts wherever possible
- Dimpled fabric aims to create less drag in the wind
- Mesh panels provide constant breathability
- Three rear pockets stash fuel for longer races
- Waist compression band supports the pockets
- Reflective accents help you stay visible on dim days
- Item #CST00FZ
- Q & A
Small on Another Level
- Familiarity: I returned this product before using it
- Fit: Runs small
- Size Bought: XXL
My first jersey was a Castelli. Love it still. I have others and while I know I need to step up a size when ordering Castelli, this jersey was particularly small. I can't say much on performance of this jersey because I never used it. I chose the 3 stars for a "middle of the road" approach. I recommend you go 2 sizes over. The XXL was so small I didn't dare zip it up. I have XL and XXL jerseys based on manufacturer, but this one is real small.