Castelli

#GIRO108 Race 8S Jersey - Men's

What Our Gearhead® Experts Are Saying:

"This jersey is built for pure speed—CFD-driven design, race-cut fit, and just enough storage to stay practical. The shoulder panels and bonded sleeve cuffs are real performance upgrades. It's a staple for high-effort rides or race days when every watt counts."

Engineered for peak performance, the Castelli #GIRO108 Race 8S Jersey blends advanced aerodynamics with lightweight, breathable construction for riders chasing every marginal gain. Built from race-day tech used in the pro peloton, it’s a standout piece for high-speed road efforts.

CFD-based fabric placement and seam construction optimize airflow, while a specialized engineered shoulder panel reduces drag where it matters most—improving aerodynamic efficiency by up to 6% in CdA. Lightweight fabrics through the core maximize breathability and moisture control, allowing riders to stay cool under pressure.

Details like bonded sleeve endings reduce chafing and streamline fit, while the YKK® Vislon® zipper offers quick, one-handed adjustment. Three rear pockets and a low-profile elastic waist provide secure storage and a stay-put fit, making this jersey ideal for race days, time trials, and fast-paced group rides.