Cabela's has Darn Tough Vermont socks on sale. These are extremely well-made (in the USA) merino wool socks with a lifetime guarantee.
Crew: $10.88
http://www.cabelas.com/product/Darn-Tough-Scent-Lok174Merino-Wool-Mini-Crew-Socks/1089745.uts?Ntk=AllProducts&searchPath=%2Fcatalog%2Fsearch.cmd%3Fform_state%3DsearchForm%26N%3D0%26fsch%3Dtrue%26Ntk%3DAllProducts%26Ntt%3D831457%26x%3D0%26y%3D0%26WTz_l%3DHeader%253BSearch-All%2BProducts&Ntt=831457&WTz_l=Header%3BSearch-All+Products
Boot: $14.88
http://www.cabelas.com/product/Darn-Tough-Scent-Lok174Merino-Wool-Boot-Socks/1089746.uts?Ntk=AllProducts&searchPath=%2Fcatalog%2Fsearch.cmd%3Fform_state%3DsearchForm%26N%3D0%26fsch%3Dtrue%26Ntk%3DAllProducts%26Ntt%3D831458%26x%3D0%26y%3D0%26WTz_l%3DHeader%253BSearch-All%2BProducts&Ntt=831458&WTz_l=Header%3BSearch-All+Products
Crew: $10.88
http://www.cabelas.com/product/Darn-Tough-Scent-Lok174Merino-Wool-Mini-Crew-Socks/1089745.uts?Ntk=AllProducts&searchPath=%2Fcatalog%2Fsearch.cmd%3Fform_state%3DsearchForm%26N%3D0%26fsch%3Dtrue%26Ntk%3DAllProducts%26Ntt%3D831457%26x%3D0%26y%3D0%26WTz_l%3DHeader%253BSearch-All%2BProducts&Ntt=831457&WTz_l=Header%3BSearch-All+Products
Boot: $14.88
http://www.cabelas.com/product/Darn-Tough-Scent-Lok174Merino-Wool-Boot-Socks/1089746.uts?Ntk=AllProducts&searchPath=%2Fcatalog%2Fsearch.cmd%3Fform_state%3DsearchForm%26N%3D0%26fsch%3Dtrue%26Ntk%3DAllProducts%26Ntt%3D831458%26x%3D0%26y%3D0%26WTz_l%3DHeader%253BSearch-All%2BProducts&Ntt=831458&WTz_l=Header%3BSearch-All+Products