Want a super comfy pair of long underwear to layer under hiking pants on winter hikes, snowshoe trips, or skiing? The SmartWool Lightweight Bottoms are the highest end long underwear I’ve tried, and work exactly as advertised: they help your body maintain a comfortable temperature, they are made of fine merino wool (so are “wicking”), are very soft, and easy to take care of (machine washable).
I also use them as PJs in my sleeping bag on camping and backpacking trips.
The only drawback is the price, so just look for them on sale or use a coupon when you buy them. Check out my advice on how to find good deals.