I am very happy with the quality of these infrared socks. I can definitely tell when I am wearing them - whether I am walking, running, or working around my horses that the infrared is effective. In fact, I have purchased multiple pairs of these socks for that reason. Also, the thickness of the material is wonderful for layering so in the winter, I can wear thicker socks over them, and then wear them alone for warmer months. Great socks!!
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