EcoSox medium weight hiking socks are built to provide 360 degrees of cushioning around the foot for optimal performance and comfort.  Natural moisture wicking yarn breathes like merino wool to keep feet drier, cleaner, and blister free.  Whether you are on a rugged multi-day trail or a quick hike during the day, these hiking socks will keep your feet feeling better!. This product plants 1 tree through our re-forestation initiative with one tree planted. Packaging comes with a stamp "This product plant one tree". Imported. 76% bamboo viscose, 10% polyester, 8% nylon, 6% rubber/spandex.