Reviewed by M from Skagway, AK on Thursday, January 24, 2013
Hands down the best base layer I've ever owned. Warm, soft, comfortable. Less stinky than synthetics when worn several days in a row (backpacking, etc.) On warmer winter days (35+) this base can be almost too warm when cross country skiing.
Works well when layering under down or a shell but it does tend to cling under fabrics with more texture (like fleece) making it a pain to layer up sometimes.