This Liz Ballerina is the perfect sock made of cotton that is low on the instep to just over the toe and made of cotton. These cotton feet have a silicone anti-slip on the back of the heel, so that the foot does not slip off your heel. The socks are invisible in your shoes, are seamless and have a smooth cuff on the toe that does not irritate. The Liz Ballerina: sneaker socks that you won't want to take off!