Altera makes the Surino & Explore Micro Socks.
The Surino® Light Weight Sport Micro Sock is made from a blend of rare Suri alpaca fiber and fine Merino wool. The combination of these high performance fibers provide superior moisture wicking, softness and temperature control. It's a great golf and summer weight sock.
Surino® Micro sock features include: Alpaca lined for comfort and superior wicking of moisture to keep feet dry and comfortable. Mesh ventilation keeps you cool and dense terry loop construction on the bottom of the sock provides a reinforced heel and toe and arch support for a great fit.
Made in the USA.