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Louis Garneau SF-2 Plastron Long Sleeve Top


Item # LGN0273

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Item # LGN0273

Better than a wind vest, really.

If you are going to stay warm during a late-season cross race, you need to layer with the Louis Garneau SF-2 Plastron Long-Sleeve Baselayer. Designed using Garneau’s Light WindDry 2 material, the front of the SF-2 Plastron features a wind- and water-stopping polyurethane membrane, and the back uses ultralight moisture-wicking material to expel excess heat and moisture. The ergonomic cut keeps the SF-2 Plastron from shifting in flight, and it won’t bunch up when hammering from the drops.

Tech Specs

supra filo, 95po polyester, lightwinddry, 100% polyester, 100% polyurethane merged knit
Recommended Use:
cold weather cycling
Manufacturer Warranty:
1 year

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...


Reduces chill factor

    This is the first base layer article of clothing I have purchased so I don't have anything to compare it to. First, the sizing is slim. I'm a big guy and have to squeeze in and out of it. I knew it would be tight so I can't complain. The front has a form of plastic imbedded in it so it cuts the wind reasonable well. The cold still gets around to the back of my arms but it protects my torso which is what I really care about. The back is mesh so it breathes sufficiently. It's basically a backless windbreaker that you can wear under your jersey. Overall, it works but I don't recommend it for colder than 45 degrees or so.


    My go to Base in the Mountains

      I received one of these nice base layer this winter. I was traveling in Portland, Atlanta, Tucson, and Sun Valley. Surprisingly I used them all of these places. It works great under lots of layer in the snow in SV, or cold windchill on the rare mornings in Tucson. It is great to have in the arsenal. This is ideal for cold racing, when you want to stay just warm enough but it needs to breath. The front shield really keeps the chest and body warm but leaves the back open for sweat to evaporate.

      leave the vest at home, zip your RealCyclist jersey up and just ride, no more fiddling with extra tops.

      (did a guy from florida really review this before me??)


      Recommended highly!!! Don't ride in the cold without it!

        This is the last under garment for winter you will ever need! No joke! It keeps you super warm and dry. I used it everyday in training camp this winter which was a cold 20's to 30's. I don't think I would have made it through camp without it. It's ten first item I look to on cold days. It has a wind shield in the front on the chest and arms. While leaving the back of the arms and back open allowing moisture to flow away.