Thin or thick socks for the Camino de Santiago?

Socks

The question was:

I’m sure with my ‘training’ going to take place in the English winter, the socks will be very thick, now when it comes to Spain in spring, they are going to be a lot thinner. So to cover my bases I’m going to take 4 pairs, 2 very thin & 2 medium ones. What do others think?

Read all about what types of socks are best for the Camino de Santiago here.