I wouldn’t agree. Wool works very well to move a lot of moisture if you are active and has a reduces stink factor when used over several days. Good wool is warmer than synthetics. Wool feels and acts “dry” for longer than synthetics while being able to absorb and move moisture. But if there is nowhere for moisture to move it will damp out. So if you are in a high humidity environment or bury the base layer under heavy insulation it will damp out and stay damp. There are a lot of experienced mountain hunters on this forum that have moved to wool for base layers and swear by it.
