Astral have recently launch some socks to compliment their range of on/off water footwear. Pretty simple but the specs look good.

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Specs:

61% American Wool, 37% Nylon, 2% Lycra Eco Friendly: Doesn’t leave the country, fewer fossil fuels used.

Durable: Wear resistant for long life.

Comfortable: Insulating loft makes a more comfortable sock in any climate. Made in the USA.