Sockwell Women's Jag Knee-Hi Socks 35% Stretch Nylon, 30% Merino Wool, 30% Bamboo Rayon, 5% Spandex Made in the USA and Imported Y Heel Shape for Better Fit Jacquard Knit Design for a Great New Look Spandex Throughout prevents slippage and ensures a snappy fit throughout the day Flat Toe Seam