This will provide enough time to break in the boots while reducing the possibility of them being outgrown by Philmont. Each crew member should wear two layers of socks. The inner layer should be polypropylene or a CoolMax sock liner. The liner wicks the moisture away from the foot to the outer sock. When the foot is dry, there is a decreased chance of a getting a blister.
Heavy wool socks as outer layers are great.
However, some crew members do not like the feel of wool socks and they take a long time to dry out once they get wet. Coop has switched to an all-synthetic outer layer hiking sock produced by Thorlo that does it not itch and dries out rapidly because but because it contains no wool. Both Wally and Mimi Hoyt use the new Smart Wool socks that were recently introduced on the market. Even though they do contain wool, they still dry much quicker than the all wool ragg socks. Like most backpacking equipment, it really comes down to a matter of personal choice.