Merino

Merino does the work no shell can. It holds warmth when it is damp, it regulates instead of just insulating, and it moves without making a sound, which is what matters on a long sit when the only thing between you and a bedded buck is how still you can stay.

These are the base and mid layers the rest of the system is built on, from lightweight early season pieces through the heavier merino you want under a parka in the cold.