Flammi Women's Ultra Low Cut Liner Socks Cotton for Flats, with the lowest cut yet stays on high heels, pointy shoes. Silicone grip is aligned from the top of the whole sock except for toe, unlike other socks this sock does not slip and stays in place. We use natural cotton yarn blending with spandex to assure that the sock is of good comfort and elasticity. <br><br>Material: 95% Cotton/5% Spandex <br><br>(Shoe Size 5-7.5 US): Fit Women's Shoe Sizing 5-7.5 US=35-37.5 EU=Foot Length 8 5/8 - 9 1/2 inches (21.9-24.1cm). <br>(Shoe Size 8-10 US): Fit Women's Shoe Sizing 8-10 US=38-40 EU=Foot Length 9 5/8 - 10 1/4 inches (24.4-26cm). <br>If you have wide feet, we suggest you to choose one size up. <br><br>Hand wash it separately, do not bleach, hang dry, do not iron, do not dryclean