Eurosocks Path Wool Quarter Socks, Grey, Large 35% Merino Wool/ 35% Microsupreme/ 15% Nylon/ 10% Acrylic/ 5% Spandex Imported Elasticzed arch band insures support and wrinkle free fit under the arch and encourages foot circulation The terry looped padding system absorbs shock and protects feet without bulkiness or wrinkling A unique padding system runs from toe box to heel and up the achilles tendon for extra comfort in trail runners and hiking boots The toe area expands whle walking to ensure comfort on both uphill and downhill strides WoolSupreme is Merino wool blended with performance driven MicroSupreme fibers that insures comfort, ventilation, moisture management and dry feet