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Craft Active Extreme Concept Base Layer - Short-Sleeve - Men's

Sale $56.21 $74.95 25% off

Item # CRA0359

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  • Black, S ($56.21)
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Item # CRA0359

Layer on comfort.

Like the COOL Concept Piece Base Layer, the Craft Active Extreme Concept Piece Base Layer provides exceptional comfort when worn under a jersey due to its Moving Wing Technology, which stretches across the back to accommodate the specific range of movements a cyclist makes while riding. But the Active Extreme Concept Piece Base Layer is designed for cooler days, when moisture management is critical but a small amount of insulation can take the chilly edge off.

The Active Extreme Concept Piece Base Layer is made of two fabrics. The shoulders and upper back are covered by Craft's lightest, most airy polyester mesh, with a portion of elastane that allows it to stretch. This fabric is also resistant to odor. The second fabric is 100-percent polyester with two layers: an inner layer with hexa-channel fibers that wick moisture and increase airflow between the fabric and the skin, and an outer layer, which keeps moisture moving away from the body but also provides some insulation.

The Craft Active Extreme Concept Piece Base Layer has an ergonomic, body-hugging fit. It comes in sizes Small through XX-Large, and in White.

  • Ergonomic, 3D construction ensures a next-to-the skin fit for efficient perspiration wicking
  • Hollow fibers on the outside of the fabric offers insulation and temperature regulation
  • A HEXA channeled fiber enhances moisture transport
  • Antimicrobial treatment to prevent fabric odor

Tech Specs

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...


Another great base layer

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

I have this one in white, and I use it for biking, skiing (both touring and resort), and running. I am always really impressed with Craft stuff, and this is no exception. It is light yet warm and never feels clammy (unlike, for example, some of my older arcteryx stuff). I have a variety of Craft base layers and they are truly my favorite. My only gripe (if this is indeed a gripe) is that the fabric (mainly the mesh under the arms) makes it so I would never wear this as a sole layer unless I am absolutely certain I will not be seen by another human!


A special garment

    As you probably know, Craft is a baselayer specialist. Their gear is fantastic. You saw it on almost every athlete in the 2014 winter Olympics..

    What I didn't know (until recently) is that Craft is based in Boras, Sweden -an old, traditional textile industry town in the South of Sweden. In 1973, Craft founder Anders Bengtsson began developing baselayer materials that transport moisture/sweat away from the skin. Over the years, Craft has highly refined the use of polyester fibers and special weaving and construction techniques.

    Anyway, it works. I don't own a Craft piece that doesn't work great. Quality is fantastic too.

    Application: For wicking sweat away from your skin during WARM weather: 60-90*. Thus keeping you dryer and cooler and more comfortable.

    Sizing: I found this Craft short-sleeve baselayer fits true to size. I'm 5'10 and 185. The size L fits perfect.