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Castelli Free Men's Sleeveless Tri Top

Sale $40.48 - $44.97 $89.95 55% off

Item # CST2667

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  • White/Black/Red, S ($44.97)
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Item # CST2667

Free speed.

Your upper body movements vary drastically throughout the duration of a triathlon, and the top that you wear on race-day needs to be able to adapt to each of the separate stages. However, it also needs to provide you with maximum comfort and muscle support. Lucky for you, Castelli realizes the importance of having a technical top that excels in all of your triathlon legs, which is why it developed the Free Sleeveless Tri Top.

The front panel of the Free Tri Top is constructed with Castelli's hydrophobic Instadry Speed fabric. This material's tight knit composition holds your torso comfortably in place, providing needed protection from run impact and road vibration. A notable perk to the derivative next-to-skin fit is that the top won't cause any excess drag, both on the land and in the water. In terms of the latter, Instadry's hydrophobic treatment provides a smooth surface that cuts through the water. Additionally, this material prevents water absorption from weighing you down during your swim and causing discomfort after T1.

Like Castelli's cycling jerseys, the Free Tri Top features a Velocity mesh construction at the back panel. This highly-breathable, lightweight fabric adds itself to the top’s flexibility, while reducing the internal temperature and transferring perspiration during the land legs of the course.

Panels have been joined with flatlock stitching throughout, preventing chafing and irritation during your run. Additionally, Castelli's GIRO3 arm gripper system comfortably holds the Free Tri Top perfectly in place, with micro clip hooks further locking the top down during your swim and bike legs.

Two slim pockets line the lower back panel, utilizing side openings that remain 'invisible' to water and wind. And while the pockets are minimal compared to those found on cycling jerseys, they easily hold arm warmers, a vest, and any other small clothing items or nutrition that you'll need on a cold race day.

The Castelli Free Tri Top is available in six sizes from Small to XXX-Large and in the color White/black/red.

  • Instadry Speed fabric front panel
  • Velocity mesh back panel
  • Flatlock stitching throughout
  • Two small side-opening pockets at the lower back

Tech Specs

[front] Instadry Speed, [back] Velcocity mesh
1/2-length front with camlock
2 rear
Recommended Use:
Manufacturer Warranty:
30 days

Size chart

Fuji Bicycles


Geometry Chart


Altamira LTD

Seat Tube


Effective Top Tube








Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop


Chainstay Length



44 44.0cm 51.5cm


36.3cm 72.1cm


72.0 deg 75.0 deg 6.9cm 40.5cm 97.1cm
47 47.0cm 53.0cm


37.0cm 74.1cm 13.0cm 72.5 deg 74.5 deg 6.9cm 40.5cm 97.7cm
50 50.0cm 54.5cm 54.0cm 37.0cm 76.0cm 14.0cm 73.0 deg 73.5 deg 6.9cm 40.5cm 97.6cm
53 53.0cm 56.0cm 56.0cm 37.9cm 78.3cm 16.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 98.6cm
55 55.0cm 57.5cm 58.0cm 38.9cm 80.1cm 18.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 100.1cm
58 58.0cm 59.0cm 60.1cm 39.7cm 82.1cm 20.0cm 74.0 deg 73.5 deg 6.9cm 40.5cm


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Here's what others have to say...


Great Fit, Very Comfortable

  • Familiarity:I've used it several times
  • Fit:Runs small

Comfortable and great fit. Wish the pockets were a little bigger but thats really the only complaint.