CRAFT MEN'S BASE LAYERS
A warm, comfortable base layer that works in all weather is what brought Craft notice. Everyone bought them, loved them, and wore them into the ground. The Craft Men's Active Crewneck Long Sleeve Base Layer is what they got first.
The key to its success was, and remains, the vertically-ribbed polyester fabric that creates pockets of warm air and was able to both wick sweat and channel vapor for maximum effect. For these to work to their maximum, they have to fit like a second skin. Flatlock stitching means you won't notice the seams as they hug your body.
The fabric now goes by the name Active, but it was once the proZero. It's good from 60 degrees Fahrenheit down as low as you can go.
The Craft Men's Active Crewneck Long Sleeve Base Layer comes in sizes from XSmall to XXLarge.