Cotton invisible socks/sockettes, specially designed to hide inside your ballerina shoes and give you maximum comfort. Mainly made from cotton, these invisible socks are strong and very discreet. They were designed to help you avoid the nuisance of sweating or friction on your bare feet. Non-slip strip above back heel. Comes in Black or White. In sizes 5-7 & 7.5-10. 42%Polyamide, 5%Lycra, 53%Cotton. Made in France.