Sockwell Women's Optic Tease Socks 33% merino Wool/33% Bamboo Rayon/29% Nylon/5% Spandex Made in US Jacquard knit design for a great new look Ultra flat toe seam for superior in shoe comfort Non cushion sole Y heel shape design for better fit Jacquard knit design for a great new look Ultra flat toe seam for superior in shoe comfort Non cushion sole