Duncan Maslandwrote a review of Craft Active Extreme Crew Long Sleeve Men's Base Layer on December 4, 2013
Familiarity: I've put it through the wringer
Fit: True to size
The best baselayer for high output aerobic activities. Period.
Breathes extremely well so it's comfortable in a range of temperatures. If I'm working hard and it's below 40*, this baselayer is on my back. I've owned the SS and LS version for 4 years and they are holding up very well. Highly recommended.