Castelli

PR 3 Speed Suit - Men's

What Our Gearhead® Experts Are Saying:

"This suit is all about smart speed. You can feel the airflow dialed in through the ribbed sleeves, and the laser-cut fit keeps everything in place even at race pace. I also appreciate the integrated storage without bulk—especially the neck pocket, which is genius in the heat."

Castelli’s PR 3 Speed Suit is a purpose-built race suit engineered to minimize drag and maximize comfort for triathlon and time trial performance. Born from advanced CFD (computational fluid dynamics) design, this suit features precisely mapped fabric placement and seam lines that optimize airflow across high-speed riding positions. Ribbed fabric on the sleeves further reduces aerodynamic drag and enhances performance at sustained speeds.

The suit's torso and shorts are crafted from Castelli’s ultralight 50-denier fabric—the thinnest and smoothest they’ve ever used—providing excellent moisture evaporation and a close-to-skin fit for pro-level aerodynamic efficiency. Integrated Premio-based shorts ensure a comfortable, compressive feel over long distances, while an internal ice pocket at the neck and an asymmetric rear GPS pocket add functional support on hot race days.

Storage is streamlined and smart, with a rear pocket designed for gels or energy bars that stays flush to reduce drag. Combined with Castelli’s KISS Tri pad for in-saddle comfort without bulk on the run, the PR 3 Speed Suit is tuned for performance across all three disciplines and built to help athletes chase their fastest times.