The Z-CoiL Comfort Socks are designed for all-day comfort and are part of the Z-CoiL Pain Relief System. Designed with extra padding at the toe and the heel these comfort socks are cool in the summer, warm in the winter, and EXCEPTIONALLY soft. The primary ingredient is Rayon which is processed from bamboo fiber.
Medium (Women's 5-11) are marked with "M" or "MD"
Large (Men's 8-14) are marked with "L" or "LG"
Machine wash with like colors. Tumble dry