Burlington 4-Pk Ladies Super Soft Knee High Boot Socks Blues & Maroons Made in USA Stay-up top keeps socks in place Smooth toe seam for extra comfort Fabric Content: 49% Acrylic, 18% Nylon, 16% Cotton, 16% Polyestor, 1% Spandex Care Instructions: Machine wash warm with like colors. Only non-chlorine bleach as needed. Tumble dry low. Do not iron. For best results, turn sock inside out before laundering.