sabbath999
Contributor
I just double up on my REI merino wool hiking socks and I'm fine. If you do want the booties option, check out Rondell's stuff on fleabay:
eBay Seller: rondel101bjrr: Sporting Goods, Clothing, Shoes Accessories items on eBay.com
I personally have not used his booties, nor know anyone that has, but I do use his undergarments and love them.
Coming back to this thread, I am trying a set of these I will let you know what I think. Thanks.