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Castelli Body Paint 3.3 Long-Sleeve Speed Suit - Men's

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Body Paint 3.3 Long-Sleeve Speed Suit

When every watt of energy expenditure is crucial to performance, streamline your race-day efforts with the slim profile of the Castelli Men's Body Paint 3.3 Speed Suit. Originally developed for pro riders competing on the World Tour, the Body Paint 3.3 Speed Suit is one of the fastest commercial suits available for us mere mortals. Castelli claims it saves an impressive 28 watts, compared to a standard jersey ridden at 24 miles per hour.

From the lab to the race course, extensive research and design brought the Body Paint 3.3 Speed Suit to fruition. Castelli used computational fluid dynamics modeling in conjunction with wind tunnel testing for the most aerodynamic suit possible. For 2017, it's been re-tweaked for a few watts of energy savings, thanks to a slightly revised design along the legs and yoke.

Power Stretch Lycra is placed along the body, supporting key muscle groups while retaining a slippery aerodynamic profile. Seamless shoulder straps employ GIRO3 elastic for flat-lying comfort without irritation. The grippers are knitted directly into the leg fabric without stitching irritation or binding issues. For optimal padding, Castelli places a Progetto X2 Air seat pad for body-adapting comfort, antimicrobial properties, and multi-density cushioning.

  • The fastest available speed suit on the market
  • Originally developed for pro riders on the World Tour
  • Saves 28 watts at 24 mph over standard cycling jerseys
  • Slightly revised with updated leg fabric and rear yoke
  • Power Stretch Lycra for support and streamlined speed
  • Progetto X2 Air pad with four-way stretch, antimicrobial
  • Grippers knitted into leg fabric to eliminate binding
  • GIRO3 elastic along shoulders for irritation-free wear
  • Item #CST00FT

[body] Power Stretch Lycra (80% polyester, 20% elastane), [back, upper sleeves] 94% poleyster, 6% elastane, [lower legs] 78% polyester, 22% elastane
Race (form-fitting)
Progetto X2 Air
Claimed Weight
Recommended Use
Manufacturer Warranty
1 year

Tech Specs

What do you think about this product?


>Rating: 5

Fantastically fast!

I've put it through the wringer
Runs small
Size Bought
6` 0"
154 lbs

It's a speed suit. It's fast. Super fast. Wind tunnel R&D shows. It's well made, holding up to the wear and tear of racing TTs. But I wanted to focus the review more on fit, since it is usually what comes up most with these garments. I'm 6' 0" and 154 lbs. I am racing in a small. Sure, it takes 5 minutes or so to get on and requires fetal position on the floor to zip up. I also cannot stand up fully once in the thing. However, get on the bike on your riding position, and there isn't a seam, crease, wrinkle to be seen. Fits like a dream.

I weigh in between 175 and 180, bigger legs and smaller upper body and same height. Do you think a medium or large would be best for me??

I'm 175 (72kg - 8˜10% body fat) and Medium is perfect for me. Castelli Aero /Climber 2.0 jersey and Bib shorts M too.

@mark I’d go medium if you are racing TT. If doing anything longer thank 40k, might want large for height and weight. For me he small is ridiculous to get into but perfect in aero position for the mid range distance.


Are there pockets on the back?

Andrew, This skinsuit does not have pockets, this is designed as a full out Time Trial skinsuit designed to save every second you can. If you were looking for a skinsuit that did have pockets for normal riding I would suggest this suit:

No. There is a flap to pin your number to in a possibly more aerodynamic manner.