Merino-Tec Active Trekking Merino Socks The ultimate trekking sock. If you have never tried socks with Merino-Tec then your feet are suffering more than they need to Merino-Tec supports improved circulation and improved circulation means healthier less achy feet The amazing properties of Merino-Tec keeps feet from feeling clammy Whether you are hiking in the Andes of around the local park wear your Merino-Tec socks with total confidence that the anti-bacterial properties of Merino-Tec will support total odor elimination Forgot your extra pairs of socks? Merino-Tec socks are mainly made from merino wool so just air them out and run them again tomorrow.