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Castelli Prologo HD Long Sleeve Jersey

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Item # CST0561

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Item # CST0561


The Castelli Prologo HD Full Zip Long Sleeve Jersey is designed for both cool and hot days. Yes, you read correctly -- hot days.

The Prologo is constructed using Stratus fabric with a Prosecco treatment, a dual-layer 100% polyester fabric that uses an inner layer of tiny filaments to transport moisture to a microfiber outer layer for maximum evaporation. What does all that mean? The Prologo insulates and breathes, keeping you warm on cool days and cool on warm days. A mesh insert on the back of the jersey also aids cooling while further enhancing the Prologo's snug, aero fit. On cool days, the Prologo works great with a base layer such as Castelli's Iride Seamless.

That said, Castelli also designed the Prologo to be used on warm days, as it breathes enough to keep you cool while protecting your upper body from the sun. In other words, the Prologo is designed to combat the ubiquitous 'farmer's tan' of the summer cyclist. If you're fair-skinned or burn easily, you'll appreciate the Prologo’s ability to keep you cool and protected.

Like other Castelli long sleeve jerseys, the Prologo comes with a full camlock zipper that stays flat when the zipper head is down. Three rear pockets are spacious enough to hold spare tubes, gloves, and food; while a smaller, zippered pocket is perfect for your keys or credit card. For increased safety, Castelli adds a rear reflective tab for visibility in low light conditions.

The Castelli Prologo HD Full Zip Long Sleeve Jersey is available in three color combinations -- Black/red, Red/white/cyan, and White/red -- each with a laser-cut Castelli wordmark logo across the chest. It comes in six sizes from Small through XXX-Large. Like most Castelli clothing, the Prologo is designed to be form-fitting as the technical fabrics used to construct the garment work best when in close contact with your body -- be sure to check the sizing chart to ensure proper fit.

Tech Specs

form fit
Recommended Use:

Size chart

Castelli Men's

Note: Castelli has a "Euro" slimmer fit. We suggest ordering at least one size larger than your normal US size.

Bike Apparel
Chest 35.5-37.5in
Waist-Tops 29.5-31.5in
Waist-Bottoms 30-32in
Hips-Bottoms 36.5-38.5in
How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.
Natural Waist:
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.

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