Glacier Hiker wrote a review of Outdoor Research Centrifuge Top - Long-Sleeve - Men's on April 12, 2013
I just got this layer. So far I think it is great. I got it to be a full zip version of my R1 Hoddie but more able to shed snow when I am ski touring in the winter.
The back and underarms is a thin waffle fleece similar to R1. The hard face front hood and arms is very thin, but tightly woven, Its soft on the inside and very smooth on the outside. I am curious to see how well this material breaths.
The zipper is fine, but feels a bit flimsy, no problems so far.
Hand and chest pockets are great, thumb loops are comfortable. Hood fits well.
I am 5'8 140 lbs I take a small.