Natural vs. Synthetic clothing

14er Skier Lou Dawson had an interesting post this weekend about the benefits of wool versus synthetic layers.
His take: both are good, but when it comes to a light, next-to-skin fabric, the new, soft wools win. They're warmer when they're wet, and can still stop the stink almost as much as an anti-microbial synthetic shirt.

A growing number of outdoor companies are going back to wool and wool blends, including, of course, Smart Wool, Ibex, Ice Breaker and Ortovox.