Bought some of the big 'tube' type socks from Trespass for DS1 as he went skiing first time a few weeks back. I bought some special undersocks as well from a specialist hiking shop but DS said they tube socks were well warm on their own.
thanks guys. We're going at Easter so Im not too worried about the thermal properties, i'd just like comfort, fresh feet and no sweating. I'll check out those ones SmartArse and Trespass and Merino. Thanks again