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Louis Garneau SF-2 Plastron Sleeveless Top


Item # LGN0274

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  • White, S ($44.95)
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Item # LGN0274

A wind vest, only in a shirt.

The Louis Garneau SF-2 Plastron Baselayer virtually eliminates the need to wear a wind vest. The back of the SF-2 features Supra Filo 2 material to release perspiration while the front employs Light WindDry 2 fabric to shield your core from frozen winds, resulting in a truly revolutionary baselayer.

Tech Specs

Light WindDry2 (100% polyester, 100% polyurethane merged knit), supra Filo 2
Recommended Use:

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...


Very versatile, very effective

  • Familiarity:I've put it through the wringer
  • Fit:True to size

I wear this under both short and long sleeve jerseys in temps from the low 50s to mid 60s (lower than that I use the long sleeve version among other base layers). It's very effective at taking a jersey that otherwise works down to about 60 and making it comfortable close to 50.

I have other ss base layers that I like and which work well in their own right (Castelli sleeveless mesh and seemless ss mesh for instance), but for fighting a chill in the air this is the one. I've used it up to the high 60s and not been too hot, but as the evening cools into the 50s it's been perfect, and no need to bring a long a vest.

I'm 5'10 with a 40 in chest and medium is just right. Not skin tight but very close fitting allowing for another base layer on top if necessary.

This is one of the best pieces of clothing I own for fall and spring riding.


My Favorite Base Layer

    When it's really cold out, this is the base layer I look for! Better than a wind vest, this shirt blocks wind from getting under your jersey to chill your the skin on your chest. The back is ventilated so heat doesn't build up. I have two of these that I use anytime the temperature is about 45 or lower....