Wear them under your hiking socks as a barrier against chafing, or wear them alone on hot day hikes. The REI Co-op COOLMAX EcoMade liner socks are moisture-wicking, breathable and durable.
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The polyester yarn in REI Co-op COOLMAX® EcoMade liner socks is made from recycled water bottles Nylon adds durability, while spandex offers stretch and shape retention so the fit will remain snug, wash after wash Smooth, flat toe seams ensure no bunching or irritation for your toes Machine wash inside out in cold or warm water; no bleach or fabric softener; tumble dry low REI is Climate Neutral Certified; as we work to actively reduce our footprint, we measure annual carbon emissions and purchase an equivalent amount of verified carbon credits Made in USA with imported and domestic yarns