Fox River Wick Dry Alturas Socks. There's something about the way these socks wick and dry so quickly that they seem to work better inside drysuit dry socks than any other liner socks - oh yea, they're polypro that's why they work so well. The key to protecting the inside of your drysuit's dry-socks is to have enough clean liner socks that you don't end up wearing dirty socks inside your suit or socks with holes that let your toenails wear into the drysocks. These liner socks hardly take up any space, and at this price even someone as cheap as a kayaker can afford to stock up on several pairs of liner socks for their next trip.

Traditional polypropylene liners wick moisture to keep feet dry.  Thermally insulated fiber to keep feet warm.  93% polypropylene, 6% nylon, 1% spandex.  Ultra lightweight.

Sizes: (Like most socks, they run a size small.)

S 3-5.5
M 6-8.5
L 9-11.5
XL 12-15