Here is MHO.
The best inexpensive "kilt socks I have found = http://stores.ebay.com/WB-SOCKS_KILT...QQftidZ2QQtZkm
By themselves good to 50s. Colder = put a pair of "soccor socks under. Good to 40s. Note you can add a pair of wool knee
http://jas-townsend.com/product_info...roducts_id=239
Colder = WPG Good from 50s to 40s. From 40s to 30s add soccor socks. 30s and below add another pair of wool or silk .

Puffer