Teko touts these ankle-height socks as the ''best socks for the planet'' and they back it up by using all natural and recycled materials. Women-specific design features narrower heels, tapered toes, and slightly more open cuffs to fit you just right. Holistically, sustainably-farmed Tasmanian merino wool naturally wicks moisture to keep feet dry and comfortable on trail regardless of temperature. Ecopoly 100% recycled polyester is soft, has great moisture transfer and adds incredible durability to the toe, Y-heel and back of foot. Nylon-covered Lycra spandex supports arches and decreases bunching, thus preventing blisters. Dense terry throughout sock provides ultimate comfort and cushioning while air vents improve breathability. Flat toe seams are non-chafing to provide maximum comfort. Launders easily in washing machine. Environmentally conscious Teko buys 100% American wind energy credits for their offices and manufacturing. *Offer not valid for sale-price items ending in $._3 or $._9.