Description of Keen Boulder Canyon 3/4 Crew Socks - Women's Stay active, stay comfortable, stay outdoors. Features: Material: Natural Merino wool & nylon/lycra A low crew multisport style anatomically designed to fit her right and left foot Cushioning across entire foot bottom for impact reduction and moisture management Ravel free double welt top to keep socks up Anatomical Flex Fit system reduces bunching of material underneath feet Y heel pockets for better fit Air panels to promote air circulation Lycra top to bottom for fit and comfort