Castelli Free Sanremo 3 vs Body Paint V TT: Triathlon Speedsuit Comparison 2026
Castelli makes suits for two different jobs, and it’s easy to buy the wrong one. The Free Sanremo 3 is built as an all-round triathlon suit you can swim, bike and run in without hating your life on the run leg. The Body Paint V TT is built to be fast in a fixed time-trial position and not much else. Here’s how they actually differ, and which one suits your racing.
Castelli Free Sanremo 3: The All-Round Triathlon Suit
The Sanremo 3 gets a reworked sleeve and shoulder area using ribbed, CFD-tested fabric, plus a debossed Forza2 Stretch fabric on the legs that’s designed to manage airflow rather than just compress. The suit opens fully at the front — useful for cooling on the run and for actually being able to use a portaloo without a wrestling match — and pairs it with a KISS Tri seat pad that’s noticeable on the bike but doesn’t feel like you’re running in a nappy once you’re off it. Silicone leg grippers keep the hems in place, and there’s an integrated ice pocket at the neck for hot race days. It comes in short-sleeve and sleeveless versions; if you’re racing somewhere hot, the white colourways run noticeably cooler in direct sun than the darker ones.
Castelli Body Paint V TT: The Aero Specialist
The Body Paint V TT is a different animal. It’s Castelli’s wind-tunnel-optimised time-trial speedsuit, developed at the Politecnico di Milano and tuned specifically for speeds above 45km/h in an extreme, fixed aero position — think draft-legal TT specialists and bike-leg-only aero hunters, not multisport comfort. The fabric (78% polyester, 22% elastane in the main panels, with different weaves used at the crotch, lower back, sleeve and seat pad) is chosen purely for aerodynamic performance in the wind tunnel, not for run comfort or easy bathroom access. Worth being honest about: this suit doesn’t advertise a front-opening zip or tri-specific venting the way the Sanremo does, so for a full triathlon — swim, bike and a run off the back of it — most age-groupers will find the Sanremo the more practical suit. The Body Paint V TT earns its place if bike-leg speed is your absolute priority and you’re happy to change for the run.
Which Should You Choose?
- Racing a standard triathlon (sprint to Ironman) — go Free Sanremo 3. You’ll wear it for all three disciplines and want the ventilation and pad comfort.
- Chasing bike-leg speed above everything else, or racing a standalone time trial — the Body Paint V TT is built for exactly that scenario.
- Racing somewhere hot — the Sanremo’s front opening and ice pocket matter more than a marginal aero gain.
- Budget-conscious — the Sanremo 3 is also the cheaper of the two at £170 versus £199 for the Body Paint V TT.
Care and Maintenance
Rinse both suits in cold water straight after a race to get chlorine, salt or sweat out before it sets into the fabric, and always hang-dry — tumble drying degrades the compression and seat pad foam quickly. Avoid fabric softener, which clogs the fabric’s moisture-wicking properties.
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